Wireless Earphones

Abstract

The present invention realizes high communication quality and improves wearing performance.　A wireless earphone 1 has a driver unit 50, a first microphone 80, a second microphone 90, and a housing 10 that houses the driver unit, the first microphone, and the second microphone. The housing is provided with a first housing part 13 that houses the first microphone, a second housing part 14 that houses the second microphone, and a body part 11 that connects the first housing part and the second housing part to each other. The first housing part is disposed so as to protrude from the body part. The second housing part is disposed so as to protrude from the body part in a direction different from the direction in which the first housing part protrudes from the body part.

Description

[Technical field]

[0001] The present invention relates to wireless earphones. [Background technology]

[0002] One type of earphone is a wireless earphone (hereinafter referred to as "wireless earphone") that does not have a cord for connecting to a sound source. Wireless earphones have a pair of left and right sound emitting units. For example, wireless earphones receive audio signals from a sound source such as a portable music player via a wireless communication line such as Bluetooth (registered trademark). There are two types of wireless earphones: wireless earphones in which the left and right sound emitting units are connected by a cable, and so-called completely wireless earphones in which the left and right sound emitting units are completely independent (the left and right sound emitting units are not connected by a cable).

[0003] Some wireless earphones have a hands-free calling function.

[0004] The hands-free calling function is a function that allows a user of the wireless earphones (hereinafter referred to as the "user") to talk on the smartphone without holding the smartphone in their hands when the wireless earphones are connected to the smartphone via a wireless communication line. This allows the user to answer a call by, for example, pressing a button on the wireless earphones without having to take the smartphone out of their pocket or bag. Therefore, the user can enjoy talking while doing housework or other work without having to use both hands.

[0005] A wireless earphone with a hands-free calling function includes a housing, a microphone, and a driver unit.

[0006] The housing contains a microphone and a driver unit.

[0007] The microphone picks up sound waves from a sound source (for example, a person making a hands-free call (hereinafter referred to as a "talker")).

[0008] The driver unit generates an electrical signal (audio signal) according to the sound waves picked up by the microphone. The audio signal generated by the driver unit is input to a smartphone via a wireless communication line. This allows the caller to talk hands-free using the wireless earphones.

[0009] Hands-free calling requires high quality speech. High quality speech is achieved by delivering only the speaker's voice to the other party without including noise from outside the housing (hereafter referred to as "external noise"). One of the technologies that achieves high quality speech is a technology that uses multiple microphones and applies beamforming (hereafter referred to as "beamforming technology").

[0010] Beamforming technology is a technology that obtains a desired target sound (hereinafter referred to as "target sound") by separating and collecting only sounds from a specific direction, avoiding the inclusion of unnecessary sounds. In beamforming technology, multiple (e.g., two) microphones for beamforming are used. In beamforming technology, the direction from which the sender's voice and external noise arrive is determined based on the sounds collected by each microphone, and the time difference between the sounds arriving at each microphone is used to form directivity by signal processing of the sound, and amplify or attenuate a specific sound. As a result, the unnecessary sound of the sender's voice and the external noise is attenuated, and the sender's voice (hereinafter referred to as "transmitted voice") is amplified and transmitted to the other party of the call. This enables clear voice calls. As a result, wireless earphones equipped with beamforming technology have high call quality in hands-free calls (see, for example, Non-Patent Documents 1 and 2). [Prior art documents] [Non-patent literature]

[0011] [Non-Patent Document 1] "Soundcore Life P2", [online], Anker, [searched on August 26, 2020], Internet<https: / / www.ankerjapan.com / item / A3919.html> [Non-Patent Document 2] "AirPods", [online], Apple, [searched on August 26, 2020], Internet<https: / / www.apple.com / jp / airpods-2nd-generation / >

[0012] The wireless earphones (completely wireless earphones) disclosed in Non-Patent Documents 1 and 2 include a housing, two microphones (a first microphone, a second microphone) for beamforming, and a driver unit. The housing includes a main body and a protruding portion protruding from the main body. The driver unit is housed in the main body. The first microphone is housed in the main body. The second microphone is housed on the tip side (opposite side to the main body) of the protruding portion.

[0013] Here, in order to form a specific directivity using beamforming technology, a certain distance is required between the microphones. In order to place the second microphone away from the first microphone, the length of the protruding part must be long, as in the wireless earphones disclosed in Non-Patent Documents 1 and 2.

[0014] Therefore, in the wireless earphones disclosed in Non-Patent Documents 1 and 2, when worn in the ear of a user (hereinafter referred to as "worn state"), the tip of the protruding part protrudes from the user's ear. When the protruding part protrudes from the user's ear, its weight makes the earphone less comfortable to wear. In addition, the shape in which the tip of the protruding part protrudes from the user's ear impairs the design of the wireless earphone. Summary of the Invention [Problem to be solved by the invention]

[0015] An object of the present invention is to achieve high speech quality and improve wearability. [Means for solving the problem]

[0016] A wireless earphone according to the present invention includes a driver unit, a first microphone, a second microphone, and a housing that accommodates the driver unit, the first microphone, and the second microphone. The housing includes a first housing portion that accommodates the first microphone, a second housing portion that accommodates the second microphone, and a main body portion that connects to the first housing portion and the second housing portion, and the first housing portion protrudes from the main body portion, and the second housing portion protrudes from the main body portion in a direction different from the protruding direction of the first housing portion. Effect of the Invention

[0017] According to the present invention, high call quality can be achieved and wearability can be improved. [Brief description of the drawings]

[0018] [Figure 1] 1 is a front view showing an embodiment of a wireless earphone according to the present invention. [Diagram 2] FIG. 2 is a rear view of the wireless earphone of FIG. [Diagram 3] FIG. 3 is a partially exploded perspective view of the wireless earphone shown in FIG. 2. [Figure 4] FIG. 2 is a partially exploded perspective view of the wireless earphone shown in FIG. [Diagram 5] 2 is a schematic diagram showing the wireless earphone of FIG. 1 being worn by a user. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The wireless earphone according to the present invention will be described with reference to the following embodiments and drawings.

[0020] ●Wireless earphones● ●Wireless earphone configuration FIG. 1 is a front view showing an embodiment of a wireless earphone according to the present invention. FIG. 2 is a rear view of the wireless earphone of FIG.

[0021] In the following description, the front of the wireless earphone 1 is the direction toward the head of the user (the direction toward the back of the paper in FIG. 1 (the direction toward the front of the paper in FIG. 2)) when the wireless earphone 1 is worn in the ear of a user of the wireless earphone 1 (hereinafter referred to as the "user") (hereinafter referred to as the "worn state"). The rear of the wireless earphone 1 is the direction opposite to the direction toward the head of the user when worn (the direction toward the front of the paper in FIG. 1 (the direction toward the back of the paper in FIG. 2)).

[0022] The wireless earphones 1 are worn on the ears of a user, and output sound waves in response to audio signals from a sound source (not shown) such as a mobile device, such as a smartphone or tablet device, and also output audio signals in response to the user's voice (sound waves) to the mobile device. The wireless earphones 1 input and output (transmit and receive) audio signals between the mobile device and the wireless earphones 1 via a wireless communication line such as Bluetooth (registered trademark), for example.

[0023] The wireless earphones 1 include a right sound output unit RU and a left sound output unit (not shown). The wireless earphones 1 are so-called completely wireless earphones in which the right sound output unit RU and the left sound output unit are completely independent and not connected by a cable or the like.

[0024] The configuration of the right sound output unit RU is the same as that of the left sound output unit RU, so the following description will be given taking the configuration of the right sound output unit RU as an example, and description of the configuration of the left sound output unit will be omitted.

[0025] FIG. 3 is a partially exploded perspective view of the wireless earphone of FIG. FIG. 4 is a partially exploded perspective view of the wireless earphone of FIG.

[0026] The following description also refers to Figures 1 and 2.

[0027] The right sound emission unit RU is attached to the right ear of the user, and outputs sound waves corresponding to an audio signal from a portable device, and outputs an audio signal corresponding to the user's voice (sound waves) to the portable device. The right sound emission unit RU includes a housing 10, a sound guide tube 20, an earpiece 30, a terminal group 40, a driver unit 50, a battery 60, a circuit board 70, a first microphone 80, and a second microphone 90.

[0028] The housing 10 accommodates the sound guide tube 20, the driver unit 50, the battery 60, the circuit board 70, the first microphone 80, and the second microphone 90. The housing 10 is made of a synthetic resin such as ABS (Acrylonitrile-Butadiene-Styrene) resin. The housing 10 includes a battery accommodating section 11, a driver accommodating section 12, a first accommodating section 13, a second accommodating section 14, and an external communication hole 15h.

[0029] The battery receptacle 11 accommodates a battery 60. The battery receptacle 11 is an example of a main body in the present invention.

[0030] The driver accommodating portion 12 accommodates the driver unit 50. The driver accommodating portion 12 is disposed in front of the battery accommodating portion 11 and protrudes forward from the battery accommodating portion 11. The internal space of the driver accommodating portion 12 (hereinafter referred to as the “internal space”) communicates with the internal space of the battery accommodating portion 11.

[0031] The first housing section 13 houses the first microphone 80. The first housing section 13 is disposed on the rear side of the battery housing section 11 and protrudes upward from the battery housing section 11 (upward in the plane of the paper in FIG. 1). That is, the direction in which the first housing section 13 protrudes from the battery housing section 11 is different from the direction in which the driver housing section 12 protrudes from the battery housing section 11. The internal space of the first housing section 13 communicates with the internal space of the battery housing section 11. The first housing section 13 includes a first sound collecting section 131. The first housing section 13 includes a surface on which the first sound collecting section is disposed. This surface is the opposing surface in the present invention. All or a part of this surface faces the opposite ear of the user's ear when the wireless earphone 1 is in use.

[0032] The first sound collecting section 131 communicates the outside with the inside (internal space) of the first housing section 13. The first sound collecting section 131 is mesh-shaped. The first sound collecting section 131 is disposed on the opposite side of the first housing section 13 from the driver housing section 12 (the rear side of the battery 60) and is disposed opposite the sound collecting surface of the first microphone 80. That is, the first sound collecting section 131 is a mesh-shaped hole for collecting sound of the first microphone 80.

[0033] The second housing section 14 houses the second microphone 90. The second housing section 14 is disposed on the rear side of the battery housing section 11 and protrudes downward (downward in the plane of the paper in FIG. 1) from the battery housing section 11. That is, the direction in which the second housing section 14 protrudes from the battery housing section 11 is different from the direction in which the driver housing section 12 protrudes from the battery housing section 11 and the direction in which the first housing section 13 protrudes from the battery housing section 11. The second housing section 14 is substantially cylindrical. The internal space of the second housing section 14 communicates with the internal space of the battery housing section 11. The second housing section 14 includes a second sound pickup section 141.

[0034] The second sound collection section 141 communicates between the outside and the inside (internal space) of the second housing section 14. The second sound collection section 141 is mesh-like. The second sound collection section 141 is disposed facing the second microphone 90. When worn, the second sound collection section 141 is disposed closer to the mouth of the user than the first sound collection section 131. That is, the second sound collection section 141 is a mesh-like hole for collecting sound from the second microphone 90.

[0035] The internal space of the first housing portion 13 communicates with the internal space of the second housing portion 14 via the internal space of the battery housing portion 11. internal The space and the first storage section 13 internal The space and the internal space of the second storage portion 14 communicate with each other.

[0036] The external communication hole 15h communicates the internal space of the housing 10 with the space outside the housing 10 (hereinafter referred to as the "external space"). The external communication hole 15h suppresses an increase in pressure in the internal space of the housing 10 that occurs when the right sound output unit RU is attached to the right ear RE (see FIG. 5) of the user (when attached to the user's auricle), and prevents damage to the driver unit 50 (for example, damage to a diaphragm (not shown) provided in the driver unit 50). The external communication hole 15h is disposed near the boundary between the battery storage section 11 and the first storage section 13.

[0037] The sound conduit 20 guides sound waves from the driver unit 50 to the ear canal of the user when the wireless earphone 1 is in use. The sound conduit 20 is substantially cylindrical. The sound conduit 20 is disposed in front of the driver unit 50. The sound conduit 20 includes a sound emitting section 21.

[0038] The sound emitting section 21 covers the tip (front end) of the sound conduit 20, and connects the outside and the inside of the sound conduit 20. The sound emitting section 21 is in a mesh shape. The sound emitting section 21 is disposed opposite to the sound emitting surface of the driver unit 50.

[0039] When worn, the earpiece 30 comes into close contact with the inner wall of the user's ear canal. The earpiece 30 is attached to the outer periphery of the sound conduit 20. The earpiece 30 is made of an elastic material such as silicone rubber. The earpiece 30 has a generally double-tube shape with the front end folded back into a U-shape in cross section.

[0040] The terminal group 40 is a collection of terminals for receiving power from a charger (not shown) to be charged into the battery 60, and terminals for transmitting a signal indicating the remaining power of the battery 60 to the charger side. The terminal group 40 is partially exposed from the second housing portion 14, and 14 will be placed in.

[0041] The driver unit 50 outputs sound waves corresponding to an audio signal from a sound source (not shown) such as a portable device. The driver unit 50 also outputs sound waves (cancellation sound) corresponding to a cancellation signal from an NC circuit described later. That is, the driver unit 50 outputs sound waves corresponding to an audio signal and sound waves corresponding to the cancellation signal. The driver unit 50 is, for example, a dynamic type electroacoustic transducer. The driver unit 50 is disposed in the internal space of the driver housing portion 12 (housed in the driver housing portion 12).

[0042] The battery 60 supplies power to various electronic circuits mounted on the circuit board 70 to drive the various electronic circuits. The battery 60 is, for example, a small button-type battery. The battery 60 is disposed in the internal space of the battery housing 11 (housed in the battery housing 11). That is, the battery 60 is disposed behind the driver unit 50.

[0043] The circuit board 70 is a board on which electronic circuits such as a noise cancellation circuit (hereinafter referred to as "NC circuit") (not shown), the first microphone 80, the second microphone 90, and each terminal constituting the terminal group 40 are attached (mounted). The circuit board 70 is disposed in the internal space of the housing 10. The circuit board 70 is, for example, a PCB (Printed Circuit Board). The circuit board 70 is connected to the driver unit 50 via a signal line SL. The circuit board 70 includes a first circuit board 71, a second circuit board 72, and a third circuit board 73.

[0044] The first circuit board 71 mounts electronic circuits such as an NC circuit and a first microphone 80. The first circuit board 71 is disposed across the battery housing section 11 and the first housing section 13 (housed in the battery housing section 11 and the first housing section 13).

[0045] The NC circuit generates a cancellation signal based on a noise signal corresponding to external noise of the housing 10 picked up by the first microphone 80. The cancellation signal generated by the NC circuit is input to the driver unit 50.

[0046] The second circuit board 72 has the terminal group 40 mounted thereon. The second circuit board 72 is connected to the first circuit board 71 via the first connector guide CG. The second circuit board 72 is disposed in the internal space of the second accommodating portion 14 (accommodated in the second accommodating portion 14).

[0047] The third circuit board 73 mounts the second microphone 90. The third circuit board 73 is connected to the first circuit board 71 via a second connector guide (not shown). The third circuit board 73 is disposed in the internal space of the second housing portion 14 (housed in the second housing portion 14).

[0048] The first microphone 80 realizes a noise cancellation function and a beamforming function in cooperation with the second microphone 90. The first microphone 80 is, for example, a MEMS (Micro Electro Mechanical Systems) microphone. The first microphone 80 is disposed in the internal space of the first housing portion 13 (housed in the first housing portion 13). That is, the first microphone 80 is disposed above the driver unit 50. In addition, the first microphone 80 is disposed at a position farther from the mouth of the user (speaker) than the second microphone 90 in the worn state. The first microphone 80 is mounted on the front surface (front surface) of the circuit board 70 (first circuit board 71) in the internal space of the first housing portion 13 with the sound collecting surface facing the first circuit board 71. The first microphone 80 has a sound collection hole (not shown) arranged on the sound collection surface, and collects external noise from the housing 10 and the sender's voice via a through hole (not shown) in the first circuit board 71 and the first sound collection section 131.

[0049] When the first microphone 80 realizes the noise cancellation function, the first microphone 80 picks up external noise of the housing 10 via the first sound collecting section 131 and generates a noise signal corresponding to the external noise. The first microphone 80 is connected to an NC circuit mounted on the circuit board 70 via a signal line (not shown).

[0050] In addition, when the first microphone 80 cooperates with the second microphone 90 to realize the beamforming function, the first microphone 80 picks up the voice of a talker who is making a hands-free call and external noise. As described above, the first microphone 80 is disposed at a position farther away from the mouth of the user (talker) than the second microphone 90. Therefore, the time it takes for the voice of the talker to reach the second microphone 90 is shorter than the time it takes for the voice of the talker to reach the first microphone 80. This allows the direction of the sound source relative to the right sound emitting unit RU to be specified. The second microphone 90 functions as a microphone for hands-free calling. The first microphone 80 functions as a microphone for beamforming correction. This attenuates the voice of the talker and external noise picked up by the first microphone 80.

[0051] The second microphone 90 realizes a beamforming function in cooperation with the first microphone 80. The second microphone 90 picks up the transmitted voice of a talker who is making a hands-free call. The second microphone 90 is, for example, a MEMS microphone.

[0052] The second microphone 90 is disposed in the internal space of the second housing portion 14 (housed in the second housing portion 14). That is, the second microphone 90 is disposed below the driver unit 50. The second microphone 90 is disposed closer to the mouth of the user (speaker) than the first microphone 80 in the worn state.

[0053] The second microphone 90 is mounted on the circuit board 70 (third circuit board 73) in the internal space of the second housing portion 14 with its sound collection surface facing the third circuit board 73. The second microphone 90 has a sound collection hole (not shown) arranged on its sound collection surface, and collects the transmitted voice of the talker via a through hole (not shown) of the third circuit board 73 and the second sound collection portion 141.

[0054] As described above, the second microphone 90 is placed at a position closer to the mouth of the user (speaker) than the first microphone 80. Also, the time it takes for the voice of the speaker to reach the second microphone 90 is shorter than the time it takes for the voice of the speaker to reach the first microphone 80. This allows the second microphone 90 to function as a microphone for hands-free calling, as described above. As a result, the voice of the speaker picked up by the second microphone 90 is amplified.

[0055] The first microphone 80 and the second microphone 90, which realize the beamforming function, transmit the voice of the speaker to the other party without including the external noise. This enables clear voice communication. As a result, the wireless earphone 1 realizes high quality communication in hands-free communication.

[0056] In this way, the wireless earphone 1 has a "beam forming function," a "noise cancellation function," and a "hands-free calling function."

[0057] FIG. 5 is a schematic diagram showing the wireless earphone 1 when worn. The figure shows a state in which the right sound emitting unit RU is attached to the right ear RE of a user.

[0058] The right sound emitting unit RU is attached to the right ear RE of the user when using the wireless earphone 1. At this time, the earpiece (see FIG. 2) and a part of the sound guide tube (see FIG. 3) are disposed in the cavity of the concha. A part (a part of the outer edge) of the first housing portion 13 that protrudes upward from the battery housing portion 11 comes into contact with the opposite wheel AN (is caught on the opposite wheel AN).

[0059] Furthermore, when a part of the first storage section 13 is in contact with the opposite wheel AN (when it is caught on the opposite wheel AN), the part of the first storage section 13 where the first microphone 80 (not shown in Figure 5) is located is not in contact with the opposite wheel AN (is not caught on the opposite wheel AN).

[0060] Summary According to the embodiment described above, the housing 10 includes the first housing portion 13 that protrudes upward from the battery housing portion 11. Therefore, when the wireless earphones 1 are worn, a part of the first housing portion 13 comes into contact with the opposing wheel AN (is caught on the opposing wheel AN). As a result, when the wireless earphones 1 are worn, the user feels a stable fit.

[0061] Furthermore, even if a part of the first housing 13 is in contact with the opposite wheel AN (caught on the opposite wheel AN) when the wireless earphone 1 is worn, the part of the first housing 13 where the first microphone 80 is arranged is not in contact with the opposite wheel AN (not caught on the opposite wheel AN). Therefore, the first microphone 80 is not affected by sound pickup such as external noise.

[0062] Furthermore, according to the embodiment described above, the first microphone 80 is accommodated inside the first housing section 13 that protrudes upward from the battery housing section 11, and the second microphone 90 is accommodated inside the second housing section 14 that protrudes downward from the battery housing section 11. Therefore, the distance between the first microphone 80 and the second microphone 90 can be secured to be the distance required for beamforming (for example, 20 mm or more). Therefore, the wireless earphone 1 can execute the beamforming function without impairing the beamforming function. As a result, the wireless earphone 1 can achieve high quality speech in hands-free calls.

[0063] Moreover, because the first microphone 80 is disposed at a position protruding from the battery housing 11, there is no need to make the length of the second housing 14 longer than necessary, as in the wireless earphones disclosed in Non-Patent Documents 1 and 2 (hereinafter referred to as "conventional wireless earphones"). As a result, the wireless earphone 1 has a longer second housing than the conventional wireless earphones. Department It is possible to shorten the length (of the protruding portion of a conventional wireless earphone). In other words, when the wireless earphone 1 is worn, the amount of the second housing portion 14 that protrudes from the user's ear is reduced. As a result, the wireless earphone 1 provides the user with a stable fit.

[0064] As described above, the configuration of the left sound emitting unit of the wireless earphone 1 is the same as the configuration of the right sound emitting unit RU. That is, the left sound emitting unit includes a housing, a sound guide tube, an earpiece, a terminal group, a driver unit, a battery, a circuit board, a first microphone, and a second microphone.

[0065] Although not explained, the right sound emitting unit and the left sound emitting unit may be configured in a so-called "relay transmission method" or in a so-called "left and right independent reception method." That is, for example, when the right sound emitting unit and the left sound emitting unit are configured in a "relay transmission method", the left sound emitting unit receives an audio signal from the right sound emitting unit, and the driver unit of the left sound emitting unit outputs a sound wave based on the audio signal. Also, when the right sound emitting unit and the left sound emitting unit are configured in a "left and right independent receiving method", the left sound emitting unit has the same configuration and operation as the right sound emitting unit described above.

[0066] Although not described, when the right and left sound emitting units are attached to the ears of a user, only the first microphone of the right sound emitting unit picks up the voice of the speaker. In other words, the microphone of the left sound emitting unit is controlled not to pick up the voice of the speaker.

[0067] The first microphone that picks up the voice of the speaker may be the first microphone of the left sound emitting unit. That is, for example, only the first microphone of the left sound emitting unit is controlled to pick up the voice of the speaker, and the microphone of the right sound emitting unit is controlled not to pick up the voice of the speaker.

[0068] Also, the operation of the first microphone that picks up the transmitter's transmitted voice may be determined by the remaining power of the battery of the right sound emitting unit and the remaining power of the battery of the left sound emitting unit. That is, for example, when the remaining power of the battery of the right sound emitting unit is high, the first microphone of the right sound emitting unit picks up the transmitter's transmitted voice, and the microphone of the left sound emitting unit is controlled not to pick up the transmitter's transmitted voice. [Explanation of symbols]

[0069] 1. Wireless earphones 10. Housing 11 Battery compartment 12 Driver housing 13 First storage section 131 First Recording Section 14 Second storage section 141 Second recording section 15h External communication hole 20 sound conduit 21 Sound emitting part 30 Earpiece 40 terminal group 50 Driver Unit 60 Battery 70 Circuit Board 71 1st circuit board 72 2nd circuit board 73 Third circuit board 80 1st microphone 90 2nd microphone RU Right sound output unit CG 1st Connector Guide RE right ear AN pair of wheels

Claims

1. A wireless earphone that is worn in a user's ear, A driver unit; A first microphone; A second microphone; a housing that accommodates the driver unit, the first microphone, and the second microphone; and The housing includes: a first housing portion that houses the first microphone; a second housing portion that houses the second microphone; a main body portion connected to each of the first storage portion and the second storage portion; Equipped with The first housing portion protrudes from the main body portion, An opposing surface facing the opposing ring of the ear; A first sound collection section for collecting sound from the first microphone; Equipped with The second housing portion protrudes from the main body portion in a direction different from a protruding direction of the first housing portion, The first sound collecting unit is disposed on the opposing surface, A part of an outer edge of the first housing portion contacts the counter wheel when the wireless earphone is worn. The wireless earphones feature

2. A driver housing portion that houses the driver unit; and The driver housing portion protrudes from the main body portion, the first housing portion protrudes from the main body portion in a direction different from a protruding direction of the driver housing portion, The second accommodating portion protrudes from the main body portion in a direction different from the protruding direction of the driver accommodating portion and in a direction opposite to the protruding direction of the first accommodating portion. The wireless earphone according to claim 1.

3. The second housing portion protrudes toward the user's mouth when the wireless earphone is worn. The wireless earphone according to claim 1.

4. The first housing portion protrudes on the opposite side to the second housing portion when the wireless earphone is in a worn state. The wireless earphone according to claim 1.

5. The internal space of the first storage portion communicates with the internal space of the second storage portion via the internal space of the main body portion. The wireless earphone according to claim 2.

6. The second housing portion includes a second sound collecting portion for collecting sound from the second microphone, The second sound collecting unit is disposed on a side of a user's mouth in the second housing unit when the wireless earphone is worn. The wireless earphone according to claim 1.

7. The first microphone, together with the second microphone, realizes a beamforming function. The wireless earphone according to claim 1.

8. The driver unit outputs a cancellation sound that cancels the external noise picked up by the first microphone. The wireless earphone according to claim 1.

9. The first microphone is a first sound collecting surface on which the first sound collecting hole is arranged; Equipped with The second microphone is a second sound collecting surface on which the second sound collecting hole is arranged; Equipped with The direction in which the first sound collecting surface is directed is different from the direction in which the second sound collecting surface is directed. The wireless earphone according to claim 1.

10. a first circuit board on which the first microphone is mounted; and The first microphone is a first sound collecting surface on which the first sound collecting hole is arranged; Equipped with The first storage section is A first sound collecting section that communicates the outside and the inside of the first storage section; Equipped with the first circuit board is disposed between the first microphone and the first sound collecting unit, The first microphone is mounted on the first circuit board with the first sound collecting surface facing the first circuit board. The wireless earphone according to claim 1.

11. a third circuit board on which the second microphone is mounted; and The second microphone is a second sound collecting surface on which the second sound collecting hole is arranged; Equipped with The second storage section is A second sound collecting section that communicates the outside and the inside of the second storage section; Equipped with the third circuit board is disposed between the second microphone and the second sound collecting unit, The second microphone is mounted on the third circuit board with the second sound collecting surface facing the third circuit board. The wireless earphone according to claim 10.

12. The direction in which the first sound collecting surface is directed is different from the direction in which the second sound collecting surface is directed. The wireless earphone according to claim 11.

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