Wireless earphone

Abstract

A wireless earphone that realizes a high voice quality and improves wearing comfort is provided. 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 has a first housing portion (13) that houses the first microphone, a second housing portion (14) that houses the second microphone, and a main body portion (11) that is connected to the first housing portion and the second housing portion. The first housing portion is provided so as to protrude from the main body portion. The second housing portion is provided so as to protrude from the main body portion in a direction different from the direction in which the first housing portion protrudes.

Description

Technical Field

[0001] This invention relates to a wireless headset. Background Technology

[0002] As a type of headphone, there is a wireless headphone (hereinafter referred to as "wireless headphone") that does not have a cable for connecting to an audio source. Wireless headphones have a pair of left and right speaker units. Wireless headphones receive audio signals from audio sources such as portable music players via wireless communication lines such as Bluetooth (registered trademark). Among wireless headphones, there are wireless headphones where the left and right speaker units are connected by a cable, and so-called fully wireless headphones where the left and right speaker units are completely independent (the left and right speaker units are not connected by a cable).

[0003] Among wireless earphones, there is a type that features hands-free calling functionality.

[0004] Hands-free calling refers to the ability of a wireless headset (hereinafter referred to as "the user") to make calls without holding the smartphone when connected to it via a wireless communication line. This allows the user to answer calls by operating buttons on the wireless headset, without having to take the smartphone out of their pocket or bag. Therefore, the user can free their hands and enjoy calls while doing housework or working.

[0005] Wireless headsets with hands-free calling capabilities include a housing, microphone, and driver unit.

[0006] The housing houses the microphone and driver unit.

[0007] The microphone picks up sound waves from a sound source (such as a person making a hands-free call (hereinafter referred to as "the caller")).

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

[0009] Hands-free calling requires high call quality. High call quality is achieved by transmitting only the caller's voice to the other party without including external noise (hereinafter referred to as "external noise"). As one technology for achieving high call quality, there is a technique that uses multiple microphones to apply beamforming (hereinafter referred to as "beamforming technology").

[0010] Beamforming technology is a technique that separates and picks up sound from only a specific direction, thereby avoiding unwanted noise and obtaining the necessary target sound (hereinafter referred to as "target sound"). Beamforming technology uses multiple (e.g., two) microphones for beamforming. Based on the sound picked up by each microphone, beamforming technology determines the direction from which the caller's voice and external noise originate. Utilizing the time difference of the sound arriving at each microphone, it forms directionality through sound signal processing, amplifying or attenuating the specific sound. Accordingly, the caller's voice and unwanted external noise are attenuated, while the caller's voice (hereinafter referred to as "call sound") is amplified and transmitted to the other party. Therefore, clear voice communication is achieved. As a result, wireless headsets using beamforming technology have high call quality in hands-free calling (e.g., see Non-Patent Literature 1, 2).

[0011] Existing technical documents

[0012] Non-patent literature:

[0013] Non-patent literature 1: "Soundcore Life P2", [online], Anker, [searched August 26, 2020], Internet <https: / / www.ankerjapan.com / item / A3919.html>

[0014] Non-Patent Document 2: "AirPods", [online], Apple, [Searched August 26, 2020], Internet <https: / / www.apple.com / jp / airpods-2nd-generation / >

[0015] Non-Patent Documents 1 and 2 disclose wireless earphones (fully wireless earphones) comprising a housing, two microphones (a first microphone and a second microphone) for beamforming, and a driver unit. The housing includes a main body and a protruding portion extending from the main body. The driver unit is housed within the main body. The first microphone is housed within the main body. The second microphone is housed on the top side of the protruding portion (opposite to the main body).

[0016] To achieve a specific directionality using beamforming technology, a certain distance needs to be maintained between the microphones. If the second microphone is to be positioned away from the first microphone, the length of the protruding part must be increased, similar to the wireless headphones disclosed in Non-Patent Documents 1 and 2.

[0017] Therefore, in the wireless earphones disclosed in Non-Patent Documents 1 and 2, when worn on the user's ear (hereinafter referred to as "wearing state"), the top of the protruding part protrudes from the user's ear. If the protruding part protrudes from the user's ear, its weight will cause a decrease in wearing comfort. In addition, the shape of the top of the protruding part protruding from the user's ear will also detract from the aesthetic design of the wireless earphones. Summary of the Invention

[0018] The problem the invention aims to solve

[0019] The purpose of this invention is to achieve higher call quality and improve wearability.

[0020] Solution for solving the problem

[0021] The wireless earphone of the present invention is characterized by having a driver unit, a first microphone, a second microphone, and a housing for housing the driver unit, the first microphone, and the second microphone. The housing has a first housing portion for housing the first microphone, a second housing portion for housing the second microphone, and a main body portion connected to the first housing portion and the second housing portion respectively. 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.

[0022] Invention Effects

[0023] According to the present invention, higher call quality and improved wearability can be achieved. Attached Figure Description

[0024] Figure 1 This is a front view illustrating an embodiment of the wireless earphone of the present invention.

[0025] Figure 2 yes Figure 1 Rear view of the wireless headphones.

[0026] Figure 3 yes Figure 2 Partial exploded 3D view of wireless earphones.

[0027] Figure 4 yes Figure 1 A partial exploded 3D view of a wireless earphone.

[0028] Figure 5 It is shown Figure 1 A diagram illustrating the state of a user wearing wireless earphones. Detailed Implementation

[0029] The wireless earphone of the present invention will be described with reference to the following embodiments and accompanying drawings.

[0030] ●Wireless Earphones●

[0031] ●Structure of wireless earphones

[0032] Figure 1 This is a front view illustrating an embodiment of the wireless earphone of the present invention.

[0033] Figure 2 yes Figure 1 Rear view of the wireless headphones.

[0034] In the following description, "front" for wireless earphone 1 refers to the direction from the user's head when the wireless earphone 1 is worn on the user's ear (hereinafter referred to as "wearing state"). Figure 1 The depth side of the paper ( Figure 2 (The direction of the front side of the paper). For wireless earphone 1, the rear side refers to the direction opposite to the direction of the user's head when wearing the earphone. Figure 1 The front side of the paper ( Figure 2 (inside the paper) direction).

[0035] The wireless earphone 1 is worn on the user's ear and outputs sound waves corresponding to audio signals from audio sources (not shown) such as smartphones, tablets, and other portable devices, and outputs audio signals corresponding to the user's voice (sound waves) to the portable device. The wireless earphone 1 inputs and outputs (transmits and receives) audio signals with the portable device via a wireless communication line such as Bluetooth (registered trademark).

[0036] Wireless Earphone 1 has a right speaker unit RU and a left speaker unit (not shown). Wireless Earphone 1 is a so-called completely wireless earphone in which the right speaker unit RU and the left speaker unit are completely independent without being connected by cables or the like.

[0037] The structure of the right speaker unit RU is the same as that of the left speaker unit. Therefore, the following description will only use the structure of the right speaker unit RU as an example, and the description of the structure of the left speaker unit will be omitted.

[0038] Figure 3 yes Figure 2 A partial exploded 3D view of a wireless earphone.

[0039] Figure 4 yes Figure 1 A partial exploded 3D view of a wireless earphone.

[0040] The following explanation also refers to Figure 1 and Figure 2 .

[0041] The right speaker unit RU is worn in the user's right ear, outputting sound waves corresponding to the audio signal from the portable device, and outputting an audio signal corresponding to the user's voice (sound waves) to the portable device. The right speaker unit RU has a housing 10, a sound 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.

[0042] The housing 10 houses 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 acrylonitrile-butadiene-styrene (ABS) resin. The housing 10 includes a battery storage section 11, a driver storage section 12, a first storage section 13, a second storage section 14, and an external communication hole 15h.

[0043] The battery storage section 11 stores the battery 60. The battery storage section 11 is an example of the main body of the present invention.

[0044] The driver storage section 12 houses the driver unit 50. The driver storage section 12 is positioned in front of the battery storage section 11 and protrudes forward from the battery storage section 11. The internal space of the driver storage section 12 (hereinafter referred to as the "internal space") communicates with the internal space of the battery storage section 11.

[0045] The first storage section 13 houses the first microphone 80. The first storage section 13 is located behind the battery storage section 11, extending upwards from the battery storage section 11. Figure 1 The first storage section 13 protrudes from the battery storage section 11 in a different direction than the driver storage section 12. The internal space of the first storage section 13 communicates with the internal space of the battery storage section 11. The first storage section 13 includes a first pickup section 131. The first storage section 13 has a surface for arranging the first pickup section. This surface is the opposing surface in this invention. All or part of this surface faces the antihelix of the user's ear when using the wireless earphone 1.

[0046] The first pickup section 131 connects the exterior and interior (internal space) of the first storage section 13. The first pickup section 131 is mesh-shaped. The first pickup section 131 is disposed on the side of the first storage section 13 opposite to the driver storage section 12 (the rear side of the battery 60), and is disposed opposite to the pickup surface of the first microphone 80. That is, the first pickup section 131 is a mesh-shaped hole for pickup by the first microphone 80.

[0047] The second storage section 14 houses the second microphone 90. The second storage section 14 is located behind the battery storage section 11, extending downwards from the battery storage section 11. Figure 1 The second storage section 14 protrudes from the battery storage section 11 in a direction different from that of the driver storage section 12 and the first storage section 13. The second storage section 14 is generally cylindrical. The interior space of the second storage section 14 communicates with the interior space of the battery storage section 11. The second storage section 14 includes a second pickup section 141.

[0048] The second pickup unit 141 connects the exterior and interior (internal space) of the second storage unit 14. The second pickup unit 141 is mesh-shaped. The second pickup unit 141 is disposed opposite to the second microphone 90. When worn, the second pickup unit 141 is positioned closer to the user's mouth than the first pickup unit 131. That is, the second pickup unit 141 is a mesh-shaped hole for pickup by the second microphone 90.

[0049] The internal space of the first storage section 13 is connected to the internal space of the second storage section 14 via the internal space of the battery storage section 11. That is, the internal spaces of the driver storage section 12, the battery storage section 11, the first storage section 13, and the second storage section 14 are connected.

[0050] The external communication port 15h connects the internal space of the outer shell 10 with the external space of the outer shell 10 (hereinafter referred to as "external space"). The external communication port 15h suppresses the right sound unit RU worn on the user's right ear RE (refer to...). Figure 5 The pressure increase in the internal space of the outer shell 10 when worn on the user's ear prevents damage to the driver unit 50 (e.g., damage to the diaphragm (not shown) of the driver unit 50). The external communication hole 15h is located near the boundary between the battery storage section 11 and the first storage section 13.

[0051] When using the wireless earphone 1, the sound guide tube 20 guides sound waves from the driver unit 50 to the user's external auditory canal. The sound guide tube 20 is generally cylindrical. The sound guide tube 20 is positioned in front of the driver unit 50. The sound guide tube 20 has a sound-emitting section 21.

[0052] The sound-emitting part 21 covers the top (front end) of the sound guide tube 20, connecting the outside and inside of the sound guide tube 20. The sound-emitting part 21 is mesh-shaped. The sound-emitting part 21 is configured opposite to the sound-emitting surface of the driver unit 50.

[0053] When worn, the earpiece 30 fits snugly against the inner wall of the user's ear canal. The earpiece 30 is mounted on the outer periphery of the sound tube 20. The earpiece 30 is made of an elastic material such as silicone. The earpiece 30 has a roughly double-layered cylindrical shape with the front end folded to a U-shape in cross-section.

[0054] Terminal group 40 is a collection of terminals for receiving power from a charger (not shown) to charge the battery 60, terminals for sending a signal to the charger indicating the remaining power of the battery 60, etc. Terminal group 40 is arranged in the second storage section 14 such that a portion of it is exposed.

[0055] The driver unit 50 outputs sound waves corresponding to audio signals from audio sources (not shown) such as portable devices. Furthermore, the driver unit 50 outputs sound waves (noise cancellation) corresponding to noise cancellation signals from the NC circuit described later. That is, the driver unit 50 outputs sound waves corresponding to both the audio signals and the noise cancellation signals. The driver unit 50 is, for example, a dynamic electroacoustic transducer. The driver unit 50 is disposed within the internal space of the driver housing 12 (stored within the driver housing 12).

[0056] Battery 60 supplies power to various electronic circuits for driving various electronic circuits mounted on circuit board 70. Battery 60 is, for example, a small button battery. Battery 60 is disposed inside the battery storage section 11 (stored in the battery storage section 11). That is, battery 60 is disposed behind the driver unit 50.

[0057] Circuit board 70 is a substrate for mounting (assembling) electronic circuits such as noise cancellation circuits (hereinafter referred to as "NC circuits") (not shown), a first microphone 80, a second microphone 90, and terminals constituting the terminal group 40. Circuit board 70 is disposed inside the housing 10. Circuit board 70 is, for example, a printed circuit board (PCB). Circuit board 70 is connected to driver unit 50 via signal line SL. Circuit board 70 includes a first circuit board 71, a second circuit board 72, and a third circuit board 73.

[0058] The first circuit board 71 is used to assemble electronic circuits such as NC circuits and the first microphone 80. The first circuit board 71 is configured across the battery storage section 11 and the first storage section 13 (stored in the battery storage section 11 and the first storage section 13).

[0059] The NC circuit generates a noise cancellation signal based on the noise signal corresponding to the external noise of the housing 10 picked up by the first microphone 80. The noise cancellation signal generated by the NC circuit is input to the driver unit 50.

[0060] The second circuit board 72 is used to assemble the terminal group 40. 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 storage section 14 (stored in the second storage section 14).

[0061] The third circuit board 73 is used for mounting 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 inside the second storage section 14.

[0062] The first microphone 80 performs noise cancellation and beamforming in conjunction with the second microphone 90. The first microphone 80 is, for example, a microelectromechanical system (MEMS) microphone. The first microphone 80 is disposed within the interior space of the first storage unit 13. That is, the first microphone 80 is positioned above the driver unit 50. Furthermore, when worn, the first microphone 80 is positioned further away from the user's (caller's) mouth than the second microphone 90. The first microphone 80 is mounted within the interior space of the first storage unit 13 on the front surface (front side) of the circuit board 70 (first circuit board 71) with its pickup surface facing the first circuit board 71. The first microphone 80 has a pickup hole (not shown) on its pickup surface, and picks up external noise from the housing 10 and the caller's voice via a through-hole (not shown) in the first circuit board 71 and the first pickup unit 131.

[0063] When the first microphone 80 performs noise cancellation, it picks up external noise from the housing 10 via the first pickup unit 131 and generates a noise signal corresponding to the external noise. The first microphone 80 is connected to the NC circuit mounted on the circuit board 70 via a signal line (not shown).

[0064] Furthermore, when the first microphone 80 and the second microphone 90 work together to perform beamforming, the first microphone 80 picks up the caller's voice and external noise during a hands-free call. As mentioned earlier, the first microphone 80 is positioned further away from the user's (caller's) mouth than the second microphone 90. Therefore, the caller's voice reaches the second microphone 90 in a shorter time than it does to reach the first microphone 80. Based on this, the direction of the sound source relative to the right sound unit RU is determined. The second microphone 90 functions as a microphone for hands-free calling. The first microphone 80 functions as a microphone for beamforming correction. Accordingly, the call voice and external noise picked up by the first microphone 80 are attenuated.

[0065] The second microphone 90 works in conjunction with the first microphone 80 to achieve beamforming. The second microphone 90 picks up the voice of the caller who is making a hands-free call. The second microphone 90 is, for example, a MEMS microphone.

[0066] The second microphone 90 is disposed within the interior space of the second storage section 14 (stored within the second storage section 14). That is, the second microphone 90 is disposed below the driver unit 50. When worn, the second microphone 90 is disposed closer to the user's (caller's) mouth than the first microphone 80.

[0067] The second microphone 90 is mounted on the circuit board 70 (the third circuit board 73) in the internal space of the second storage section 14 with the pickup surface facing the third circuit board 73. The second microphone 90 has a pickup hole (not shown) on its pickup surface and picks up the speaker's voice through the through hole (not shown) of the third circuit board 73 and the second pickup section 141.

[0068] As previously mentioned, the second microphone 90 is positioned closer to the user's (the caller's) mouth than the first microphone 80. Furthermore, the caller's voice reaches the second microphone 90 in a shorter time than it takes to reach the first microphone 80. Therefore, as previously stated, the second microphone 90 functions as a microphone for hands-free calling. As a result, the call sound picked up by the second microphone 90 is amplified.

[0069] By using the first microphone 80 and the second microphone 90, which perform beamforming, the caller's voice, along with the external noise-free portion of the external noise, is transmitted to the other party. Therefore, clear audio communication is achieved. As a result, high call quality can be achieved during hands-free calling via the wireless headset 1.

[0070] As described above, the wireless earphone 1 has "beamforming function", "noise cancellation function" and "hands-free calling function".

[0071] Figure 5 This is a schematic diagram showing the wearing state of the wireless earphone 1.

[0072] The diagram shows the right speaker unit RU being worn in the user's right ear RE.

[0073] The right speaker unit RU is worn in the user's right ear RE when using wireless earphone 1. At this time, the earpiece (refer to...) Figure 2 ) and sound guide tube (refer to Figure 3 A portion of the battery is disposed in the concha cavity. A portion (a portion of the outer edge) of the first storage portion 13, which protrudes upward from the battery storage portion 11, contacts (hides against) the antihelix AN.

[0074] Furthermore, when a portion of the first storage section 13 contacts the antihelix AN (when it is attached to the antihelix AN), the arrangement in the first storage section 13 is in the first microphone 80 ( Figure 5 The part (not shown in the diagram) does not contact the antihelix AN (it is not attached to the antihelix AN).

[0075] ●Summary

[0076] According to the embodiment described above, the housing 10 includes a first storage portion 13 that protrudes upward from the battery storage portion 11. Therefore, when the wireless earphone 1 is worn, a portion of the first storage portion 13 contacts (aggregates against) the antihelix AN. As a result, the wireless earphone 1 provides the user with a stable wearing experience when worn.

[0077] Furthermore, even when a portion of the first storage section 13 is in contact with the antihelix AN (hook onto the antihelix AN) while the wireless earphone 1 is being worn, the portion of the first storage section 13 in which the first microphone 80 is located will not come into contact with the antihelix AN (will not hook onto the antihelix AN). Therefore, the first microphone 80 will not be affected by external noise or other factors in terms of sound pickup.

[0078] Furthermore, according to the embodiment described above, the first microphone 80 is housed inside the first storage portion 13, which protrudes upward from the battery storage portion 11, and the second microphone 90 is housed inside the second storage portion 14, which protrudes downward from the battery storage portion 11. Therefore, the distance between the first microphone 80 and the second microphone 90 ensures the distance required for beamforming (e.g., 20mm or more). Thus, the wireless headset 1 can implement beamforming functionality without compromising its beamforming capabilities. As a result, the wireless headset 1 can achieve high call quality for hands-free calling.

[0079] Furthermore, since the first microphone 80 is positioned to protrude from the battery storage section 11, it is not necessary to extend the length of the second storage section 14 beyond the required length as is done with wireless headphones disclosed in Non-Patent Documents 1 and 2 (hereinafter referred to as "conventional wireless headphones"). As a result, compared with conventional wireless headphones, the wireless headphone 1 can shorten the length of the second storage section (the protruding part of conventional wireless headphones). That is, when the wireless headphone 1 is worn, the amount of the second storage section 14 protruding from the user's ear is reduced. Therefore, the wireless headphone 1 provides the user with a stable wearing experience.

[0080] It should be noted that, as mentioned earlier, the structure of the left speaker unit of the wireless earphone 1 is the same as that of the right speaker unit RU. That is, the left speaker unit includes a housing, a sound tube, an earpiece, a terminal group, a driver unit, a battery, a circuit board, a first microphone, and a second microphone.

[0081] Although the explanation is omitted, the right and left sound units can be configured as a so-called "relay transmission mode" or a so-called "independent left and right receiving mode".

[0082] That is, for example, when the right and left sound units are configured in a "relay transmission mode", the left sound unit receives the audio signal from the right sound unit, and the driver unit of the left sound unit outputs a sound wave based on the audio signal. Furthermore, when the right and left sound units are configured in a "left and right independent receiving mode", the left sound unit has the same structure and operation as the aforementioned right sound unit.

[0083] Furthermore, although the explanation is omitted, when the right and left speaker units are worn in the user's ear, only the first microphone of the right speaker unit picks up the caller's voice. That is, the microphone of the left speaker unit is controlled not to pick up the caller's voice.

[0084] It should be noted that the first microphone that picks up the caller's voice can also be the first microphone of the left speaker unit. That is, for example, only the first microphone of the left speaker unit picks up the caller's voice, while the microphone of the right speaker unit is controlled not to pick up the caller's voice.

[0085] Furthermore, the operation of the first microphone that picks up the caller's voice can also depend on the remaining battery power of the right speaker unit and the left speaker unit. That is, for example, when the battery power of the right speaker unit is relatively high, the first microphone of the right speaker unit picks up the caller's voice, while the microphone of the left speaker unit is controlled not to pick up the caller's voice.

[0086] Explanation of reference numerals in the attached figures

[0087] 1: Wireless headphones

[0088] 10: Outer shell

[0089] 11: Battery storage section

[0090] 12: Drive storage compartment

[0091] 13: First Storage Department

[0092] 131: First pickup section

[0093] 14: Second Storage Department

[0094] 141: Second pickup section

[0095] 15h: External connecting hole

[0096] 20: Sound guide tube

[0097] 21: Vocal Part

[0098] 30: Earpiece

[0099] 40: Terminal block

[0100] 50: Driver Unit

[0101] 60: Battery

[0102] 70: Circuit board

[0103] 71: Circuit Board 1

[0104] 72: Circuit Board 2

[0105] 73: Circuit Board 3

[0106] 80: Microphone 1

[0107] 90: Second microphone

[0108] RU: Right speaker unit

[0109] CG: First Connector Guide

[0110] RE: Right ear

[0111] AN: Antihelix.

Claims

1. A wireless earphone worn on a user's ear, characterized in that, have: Driver unit; Microphone 1; The second microphone; and The housing includes the driver unit, the first microphone, and the second microphone. The outer casing includes: The first storage section houses the first microphone; The second storage section houses the second microphone; and The main body is connected to both the first storage section and the second storage section. The first storage portion protrudes from the main body and includes: an opposing surface opposite to the antihelix of the ear; and a first pickup portion for the first microphone. The second storage section protrudes from the main body in a direction different from the protruding direction of the first storage section. The first pickup unit is disposed on the opposite surface. When the wireless earphone is in the wearing state, a portion of the outer edge of the first storage part contacts the antihelix.

2. The wireless earphone according to claim 1, characterized in that, It has a driver storage section that houses the driver unit. The driver storage section protrudes from the main body. The first storage section protrudes from the main body in a direction different from the protruding direction of the driver storage section. The second storage section protrudes from the main body in a direction different from the protruding direction of the driver storage section and opposite to the protruding direction of the first storage section.

3. The wireless earphone according to claim 1, characterized in that, The second storage portion protrudes toward the user's mouth when the wireless earphone is worn.

4. The wireless earphone according to claim 1, characterized in that, The first storage portion protrudes toward the opposite side of the second storage portion when the wireless earphone is worn.

5. The wireless earphone according to claim 2, characterized in that, The internal space of the first storage section is connected to the internal space of the second storage section via the internal space of the main body section.

6. The wireless earphone according to claim 1, characterized in that, The second storage section includes a second pickup section for picking up sound from the second microphone. The second pickup unit is positioned on the user's mouth side within the second storage unit during the wearing state of the wireless earphone.

7. The wireless earphone according to claim 1, characterized in that, The first microphone and the second microphone together achieve beamforming function.

8. The wireless earphone according to claim 1, characterized in that, The driver unit outputs noise cancellation to eliminate external noise picked up by the first microphone.

9. The wireless earphone according to claim 1, characterized in that, The first microphone has a first pickup surface, and the first pickup surface is provided for mounting a first pickup hole. The second microphone has a second pickup surface, and the second pickup surface is provided for mounting a second pickup hole. The direction in which the first pickup surface faces is different from the direction in which the second pickup surface faces.

10. The wireless earphone according to claim 1, characterized in that, It has a first circuit board for assembling the first microphone. The first microphone has a first pickup surface, and the first pickup surface is provided for mounting a first pickup hole. The first storage unit includes a first microphone, which connects the outside and the inside of the first storage unit. The first circuit board is disposed between the first microphone and the first pickup unit. The first microphone is mounted on the first circuit board such that the first pickup surface faces the first circuit board.

11. The wireless earphone according to claim 10, characterized in that, It has a third circuit board for assembling the second microphone. The second microphone has a second pickup surface, and the second pickup surface is provided for mounting a second pickup hole. The second storage section includes a second pickup section, which connects the exterior and interior of the second storage section. The third circuit board is disposed between the second microphone and the second pickup unit. The second microphone is mounted on the third circuit board such that the second pickup surface faces the third circuit board.

12. The wireless earphone according to claim 11, characterized in that, The direction in which the first pickup surface faces is different from the direction in which the second pickup surface faces.

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