Wireless earphone

Abstract

The utility model relates to a wireless earphone comprising a metal housing, a horn and a noise reduction pickup module, the surface of the metal housing is provided with a sound outlet hole and a pickup hole, an accommodating cavity is formed in the metal housing, the horn is arranged in the accommodating cavity, the sound outlet side of the horn faces the sound outlet hole, the noise reduction pickup module is arranged in the accommodating cavity, and the pickup side of the noise reduction pickup module faces the pickup hole. The metal shell plays a role in containing and protecting internal components of the wireless earphone, the sound outlet hole is a main channel for the wireless earphone to play sound, the sound can be transmitted into ears through the sound outlet hole, the sound outlet hole can ensure that the sound in the wireless earphone can be transmitted clearly, and meanwhile interference of external noise can be avoided. The noise reduction pickup module is arranged in the containing cavity, the noise reduction pickup module can enable the wireless earphone to provide high-quality audio experience, meanwhile, good call quality and noise reduction effect can be kept in various environments, and sound can enter the noise reduction pickup module of the wireless earphone through the pickup hole. The earphone provided by the utility model can improve the noise reduction effect of the wireless earphone.

Description

TECHNICAL FIELD

[0001] The utility model relates to earphone equipment technical field, especially wireless earphone. BACKGROUND

[0002] With the rapid development of earphone technology, wireless earphone wins more and more users' favor because of convenient use and carrying. Earphone is widely used in people's daily life, and can be used with mobile phone, computer and other electronic equipment to provide users with auditory feast. According to the working principle of earphone, it can be generally divided into air conduction earphone and bone conduction earphone, and according to the way of wearing earphone, it can be generally divided into head-mounted earphone, ear-hanging earphone and in-ear earphone, and according to the interaction between earphone and electronic equipment, it can also be generally divided into wired earphone and wireless earphone. Earphone can accept the electric signal sent by media player or receiver, and convert it into audible sound wave by the loudspeaker close to the ear. Wireless earphone is favored because of its wireless transmission and convenient carrying, such as Bluetooth wireless earphone, wireless sports earphone, Dolby Bluetooth earphone, wireless intelligent earphone, Bluetooth call noise reduction earphone and the like. According to different occasions, choosing suitable earphone has become a symbol of trend life. The cavity volume of the sound outlet of many earphones in the prior art is small, and the noise reduction effect is not good, and the waterproof performance of the earphone is poor. SUMMARY

[0003] Therefore, it is necessary to provide a wireless earphone capable of improving the noise reduction effect of the wireless earphone.

[0004] A wireless earphone, comprising a metal shell, a loudspeaker and a noise reduction sound pickup module, wherein the metal shell is provided with a sound outlet and a sound pickup hole on the surface, a containing cavity is formed in the metal shell, the loudspeaker is arranged in the containing cavity and the sound outlet side of the loudspeaker faces the sound outlet, and the noise reduction sound pickup module is arranged in the containing cavity and the sound pickup side of the noise reduction sound pickup module faces the sound pickup hole.

[0005] In the wireless earphone provided in the application, the metal shell plays a role in containing and protecting the internal components of the wireless earphone, the sound outlet is the main channel for the wireless earphone to play sound, sound can be transmitted into the ear through the sound outlet, and the sound outlet can ensure that the sound in the wireless earphone can be clearly transmitted while avoiding the interference of external noise. The sound pickup hole is a structure for collecting sound on the wireless earphone, and can be used for microphone sound pickup. The containing cavity is formed in the metal shell, and the noise reduction sound pickup module is arranged in the containing cavity. The noise reduction sound pickup module can enable the wireless earphone to provide high-quality audio experience while maintaining good call quality and noise reduction effect in various environments, and the sound pickup side of the noise reduction sound pickup module faces the sound pickup hole, so that sound can enter the noise reduction sound pickup module of the wireless earphone through the sound pickup hole. The wireless earphone provided in the application can improve the noise reduction effect of the wireless earphone.

[0006] In one embodiment, an insulating element is provided on the outside of the speaker, and the insulating element is connected between the speaker and the cavity wall of the receiving cavity.

[0007] In one embodiment, the insulating element is a silicone sleeve, which is fitted onto the front end face of the speaker and abuts against the cavity wall of the receiving cavity.

[0008] In one embodiment, the outer surface of the metal casing has an arc-shaped surface, and the sound outlet and the sound pickup hole are located on the same arc-shaped surface.

[0009] In one embodiment, the cavity wall of the accommodating cavity is provided with a first groove, the pickup hole is opened at the bottom of the first groove, and the noise reduction pickup module is covered on the first groove.

[0010] In one embodiment, the noise reduction pickup module includes a noise reduction microphone assembly and a waterproof cloth, wherein the waterproof cloth is disposed between the noise reduction microphone assembly and the bottom of the first groove, and the noise reduction microphone assembly is disposed on the cavity wall of the accommodating cavity.

[0011] In one embodiment, the noise-canceling microphone assembly includes a microphone and an insulating reinforcing plate, the microphone being disposed on the insulating reinforcing plate and spaced apart from the cavity wall of the accommodating cavity, and the insulating reinforcing plate being fixed to the cavity wall of the accommodating cavity.

[0012] In one embodiment, the waterproof cloth is placed over the top edge of the first tank.

[0013] In one embodiment, the cavity wall of the receiving cavity is provided with a second groove, the first groove is provided at the bottom of the second groove, a stepped surface is formed between the bottom edge of the second groove and the top edge of the first groove, and the waterproof cloth is fixed to the stepped surface and covers the first groove.

[0014] In one embodiment, the cavity wall of the accommodating cavity forms a groove, the sound outlet is opened at the bottom of the groove, the speaker portion is located in the groove, a first platform is formed by a protrusion in the groove, and the second groove is opened on the first platform. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 This is a schematic diagram of the structure of a wireless earphone provided in an embodiment of this application;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of a wireless earphone provided in one embodiment;

[0018] Figure 3 This is a schematic diagram of a partial structure of a wireless earphone provided in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of a partial structure of a wireless earphone provided in an embodiment of this application;

[0020] Figure 5 for Figure 4 A schematic diagram of a wireless headset provided in one embodiment;

[0021] Figure 6 A cross-sectional view of a wireless earphone provided in an embodiment of this application;

[0022] Figure 7 An exploded view of a wireless earphone provided in an embodiment of this application;

[0023] Figure 8 This is a schematic diagram of the structure of a wireless earphone provided in an embodiment of this application;

[0024] Figure 9 This is a schematic diagram of the structure of a wireless earphone provided in an embodiment of this application;

[0025] Figure 10 This is a schematic diagram of a portion of the structure of a wireless earphone provided in an embodiment of this application.

[0026] Reference numerals: Wireless earphone 10; Metal shell 20; Curved surface 201; Sound outlet 21; Sound pickup hole 22; Receiving cavity 23; Recess 230; First platform 2301; First groove 231; Second groove 232; Stepped surface 233; Speaker 30; Noise-canceling pickup module 40; Noise-canceling microphone assembly 41; Microphone 411; Insulating reinforcing plate 412; Waterproof cloth 42; Insulating component 50; Silicone sleeve 51; Ear hook 60 Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0028] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and so on the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the limitation of the utility model.

[0029] In the utility model, unless another explicit provision and limitation, the terms "installation", "connection", "connect", "fix" and so on the terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another explicit limitation.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0030] In the utility model, unless another explicit provision and limitation, the first feature is "on" or "under" the second feature can be the direct contact of the first and second features, or the indirect contact of the first and second features through intermediate medium.Moreover, the first feature is "on", "above" and "on" the second feature can be the first feature directly above or obliquely above the second feature, or just indicate that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature can be the first feature directly below or obliquely below the second feature, or just indicate that the horizontal height of the first feature is less than the second feature.

[0031] With the rapid development of earphone technology, wireless earphones are favored by more and more users due to their convenience of use and carrying. Earphones are widely used in people's daily life, which can be used with mobile phones, computers and other electronic devices to provide users with an auditory feast. Among them, according to the working principle of earphones, they can be generally divided into air-conduction earphones and bone-conduction earphones; according to the way of wearing earphones by users, they can be generally divided into head-mounted earphones, ear-hung earphones and in-ear earphones; according to the interaction between earphones and electronic devices, they can also be generally divided into wired earphones and wireless earphones. Earphones can accept the electrical signals emitted by media players or receivers and convert them into audible sound waves using speakers close to the ears. Wireless earphones are favored due to their wireless transmission and convenient carrying, such as Bluetooth wireless earphones, wireless sports earphones, Dolby Bluetooth earphones, wireless smart earphones, Bluetooth call noise reduction earphones, etc. According to different occasions, choosing the right earphones has become a symbol of trendy life. The sound outlet cavity volume of many earphones in the prior art is small, the noise reduction effect is not good, and the waterproof performance of the earphones is poor.

[0032] Reference Figures 1-9 To solve the above problems, the embodiments of the present application provide a wireless earphone 10, which comprises a metal shell 20, a loudspeaker 30 and a noise reduction sound pickup module 40. The metal shell 20 is provided with a sound outlet hole 21 and a sound pickup hole 22 on the surface, and a containing cavity 23 is formed in the metal shell 20. The loudspeaker 30 is arranged in the containing cavity 23 and the sound outlet side faces the sound outlet hole 21. The noise reduction sound pickup module 40 is arranged in the containing cavity 23 and the sound pickup side faces the sound pickup hole 22.

[0033] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7In the wireless earphone 10, a metal shell 20, a loudspeaker 30, and a noise reduction microphone module 40 are included. The metal shell 20 has sound outlet holes 21 and sound pickup holes 22. The metal shell 20 serves to accommodate and protect the internal components of the wireless earphone 10. The sound outlet holes 21 are the main sound transmission path of the wireless earphone 10. Sound can be transmitted into the ear through the sound outlet holes 21. The sound outlet holes 21 have many holes, which are designed to ensure clear sound transmission and avoid external noise interference. The sound pickup holes 22 are structures for collecting sound on the wireless earphone 10. The sound pickup holes 22 can be used for microphone 411 sound pickup. In some embodiments, the sound pickup holes 22 can be designed as multiple small holes, which can adjust the sound and pick up the sound to ensure the clarity when using the wireless earphone 10 for calls or recording. The sound pickup holes 22 can collect sound signals through the microphone 411, convert the sound signals into electrical signals, and thus realize sound transmission. During the process of using the wireless earphone 10 for calls or recording, the sound pickup holes 22 can accurately capture the user's voice to ensure the clarity of the call and the quality of the recording. In order to protect the sound quality and function of the wireless earphone 10, the user should avoid using sharp objects to poke the sound pickup holes 22 when using the wireless earphone 10, so as to prevent the sharp objects from poking into the sound pickup holes 22 and causing the sound quality of the wireless earphone 10 to deteriorate or even damage. Correct use and maintenance of the wireless earphone 10 are crucial to prolong the service life of the earphone and maintain good sound quality.

[0034] Reference Figure 3 , Figure 5 , Figure 6 and Figure 7In some embodiments, a receiving groove is formed in the metal shell 20 of the wireless earphone 10, which can accommodate the components inside the wireless earphone 10, and the loudspeaker 30 is arranged in the receiving cavity 23. The loudspeaker 30 of the wireless earphone 10 can adopt a moving coil loudspeaker 30, a moving iron loudspeaker 30, and a compound diaphragm loudspeaker 30. When the loudspeaker 30 of the wireless earphone 10 adopts a moving coil loudspeaker 30, the moving coil loudspeaker 30 can drive the coil to move by a magnet, thereby causing the diaphragm to vibrate and produce sound. The moving coil loudspeaker 30 has the advantages of full sound and good bass effect, and is suitable for playing most types of music, such as pop music and jazz music. When the loudspeaker 30 of the wireless earphone 10 adopts a moving iron loudspeaker 30, the moving iron loudspeaker 30 can rely on the vibration of the iron sheet under the action of the magnetic field to produce sound, and has the characteristics of strong dynamic response and strong high-frequency resolution, and is suitable for playing music with compact rhythm, such as pop music and rock music. When the loudspeaker 30 of the wireless earphone 10 adopts a compound diaphragm loudspeaker 30, the compound diaphragm loudspeaker 30 combines the advantages of moving coil and moving iron, and is usually used in high-end earphones. The compound diaphragm loudspeaker 30 can provide more balanced sound quality and a wider frequency response range, and is suitable for users who have high requirements for sound quality. Different types of loudspeakers 30 of the wireless earphone 10 can be used according to different needs of users for music. In some embodiments, the loudspeaker 30 is arranged in the receiving cavity 23, and the sound outlet side of the loudspeaker 30 faces the sound outlet hole 21, so that the sound emitted by the loudspeaker 30 can be transmitted to the user through the sound outlet hole 21. The noise reduction and sound pickup module 40 is arranged in the receiving cavity 23. The noise reduction and sound pickup module 40 can provide high-quality audio experience while maintaining good call quality and noise reduction effect in various environments. The sound pickup side of the noise reduction and sound pickup module 40 faces the sound pickup hole 22, so that sound can enter the noise reduction and sound pickup module 40 of the wireless earphone 10 through the sound pickup hole 22. The existing front sound outlet hole 21 of the loudspeaker 30 of the noise reduction earphone under the metal ear shell shape adopts a SUS304 (304 stainless steel) steel mesh with a pore size of 0.2 to 0.35 mm. The existing earphone usually adopts an etching process to dig a groove from the outside of the ear shell and fix it with glue. This process requires a large assembly space and occupies the thickness space of the ear shell, which has greater limitations on the metal ear shell, such as difficulty in fixing the steel mesh with the ear shell with glue and easy falling off. The wireless earphone 10 provided by the present application can directly and integrally form the sound outlet hole 21 of the loudspeaker 30 front cavity on the metal shell 20, which can eliminate the steel mesh part and maximize the volume of the loudspeaker 30 front cavity under the premise of ensuring the delicate appearance, so as to improve the noise reduction effect of the wireless earphone 10. In some embodiments, an insulating piece 50 is arranged on the outside of the loudspeaker 30 of the wireless earphone 10, and the insulating piece 50 is connected between the loudspeaker 30 and the cavity wall of the receiving cavity 23. The arrangement of the insulating piece 50 can insulate the loudspeaker 30 from the metal shell 20. Specifically, the insulating piece 50 is a silica gel sleeve 51, which is sleeved on the front end face of the loudspeaker 30. The loudspeaker 30 can be wrapped with silica gel around the circumference, so as to insulate the front end of the loudspeaker 30 from the metal shell 20.In some embodiments, the silica gel sleeve 51 abuts against the cavity wall of the accommodating cavity 23, so that the front end of the loudspeaker 30 is not only insulated from the metal shell 20, but also the vibration transmitted from the loudspeaker 30 to the metal shell 20 is reduced. The abutment of the silica gel sleeve 51 against the cavity wall of the accommodating cavity 23 makes the compact connection among the loudspeaker 30, the silica gel sleeve 51 and the cavity wall of the accommodating cavity 23, which is conducive to the stable assembly of the devices in the accommodating cavity 23 of the wireless earphone 10.

[0035] Reference Figures 1-5 In some embodiments, the outer side of the metal shell 20 has an arc surface 201, and the sound outlet hole 21 and the sound pickup hole 22 are arranged on the same arc surface 201, so that the structure of the wireless earphone 10 is compact. The metal shell 20 can be made of light metal materials such as aluminum alloy, magnesium alloy, titanium alloy, etc. In an embodiment, the sound outlet hole 21 of the wireless earphone 10 can be formed by 87 holes with a diameter of 0.4 mm, and the sound outlet hole 21 and the metal shell 20 are integrally formed. In some embodiments, a bright edge can be coated on the periphery of the sound outlet hole 21. The bright edge can be processed by secondary oxidation coloring, silk printing, patching, etc., so that the appearance of the wireless earphone 10 is more beautiful and has a decorative effect. In an embodiment, the sound pickup hole 22 of the wireless earphone 10 can be designed as 16 small holes with a diameter of 4.0 mm, and the sound pickup hole 22 and the metal shell 20 are integrally designed.

[0036] Reference Figure 1 , Figure 7 , Figure 8 and Figure 9In some embodiments, the cavity wall of the accommodating cavity 23 is provided with a first groove 231, the groove bottom of the first groove 231 is close to one side of the metal shell 20, the sound pickup hole 22 is provided on the groove bottom of the first groove 231, and the noise reduction sound pickup module 40 can be arranged on the first groove 231, so that the noise reduction sound pickup module 40 can abut against the cavity wall of the accommodating cavity 23, and then the noise reduction sound pickup module 40 is closely connected with the inner wall of the metal shell 20. The sound pickup hole 22 is directly provided on the metal shell 20, which eliminates the steel mesh part in the traditional earphone. In some embodiments, the noise reduction sound pickup module 40 includes a noise reduction microphone assembly 41 and a waterproof cloth 42, the waterproof cloth 42 is arranged between the noise reduction microphone assembly 41 and the groove bottom of the first groove 231, and the noise reduction microphone assembly 41 is arranged on the cavity wall of the accommodating cavity 23. The waterproof cloth 42 can be made of a waterproof and breathable film, which can enhance the waterproof and dustproof performance of the earphone. Specifically, the waterproof cloth 42 can be adhered to the groove bottom of the first groove 231 by using a good adhesive, which can protect the noise reduction microphone assembly 41 placed in the first groove 231 from water, dust, dirt and impurities, while ensuring the clarity and naturalness of the sound. The waterproof and breathable film is designed with micropores, which can prevent water and dust from entering the earphone, and allow gas to pass through to maintain the balance of internal and external pressure. This design allows the earphone to be used in a humid environment, effectively preventing water and sweat from entering, while ensuring that the transmission of sound is not affected. The waterproof cloth 42 is also commonly used in sports earphones, for example, TWS earphones (True Wireless Stereo earphones) often use this waterproof and breathable film to improve their waterproof and dustproof level, so that they can be used in rainy and snowy weather or during exercise without worrying about sweat and rainwater soaking the wireless earphone 10. In some embodiments, the noise reduction microphone assembly 41 includes a microphone 411 and an insulating reinforcing plate 412. The microphone 411 refers to a microphone 411 built into the wireless earphone 10, which is mainly used for calling and recording functions, allowing users to make calls or record through the earphone. In some embodiments, the microphone 411 can be a micro-electro-mechanical system (MEMS) microphone 411, which has the advantages of small size, low power consumption, high performance, high consistency and low cost. In some wireless earphones 10, the microphone 411 has the effects of receiving voice signals, receiving external noise signals and detecting noise inside the earplug. The microphone 411 is arranged on the insulating reinforcing plate 412 and is spaced from the cavity wall of the accommodating cavity 23. The insulating reinforcing plate 412 is fixed on the cavity wall of the accommodating cavity 23, which can insulate and space the noise reduction microphone 411 and the metal shell 20. The insulating reinforcing plate 412 can be made of a new type of high-temperature resistant thermosetting engineering plastic, which has excellent electrical insulation, wear resistance, high-temperature radiation resistance and physical and mechanical properties.There is no direct contact between the microphone 411 of the wireless earphone 10 and the metal shell 20. In some embodiments, an insulating reinforcing plate 412 is arranged between the microphone 411 and the metal shell 20 to insulate the microphone 411 and the metal shell 20, so as to avoid performance problems or damage of the wireless earphone 10 caused by static discharge in the use process. Static discharge is a phenomenon that occurs when electric charges accumulate on a surface and then discharge to another material. Humidity is one of the factors that cause static discharge. Dry environments common in winter usually have a high static discharge rate because lower humidity prevents electric charges from dissipating into the environment. The wireless earphone 10 provided by the application is waterproof, which can effectively avoid the phenomenon of static discharge and improve the user experience when using the wireless earphone 10.

[0037] Referring to Figure 1 , Figure 7 , Figure 9 and Figure 10 , in some embodiments, the waterproof cloth 42 is arranged on the top edge of the first groove 231. The inside of the first groove 231 is a hollow structure, which can increase the volume of the sound cavity, maximize the volume of the front cavity of the loudspeaker 30 under the premise of ensuring the delicate appearance, and thus improve the noise reduction effect of the wireless earphone 10. In one embodiment, the volume of the sound cavity is 14.2 cubic millimeters. By increasing the volume of the sound hole 21 cavity, more space can be provided for the loudspeaker, so that the sound is fuller and clearer. A larger sound hole 21 cavity volume can better balance the air pressure inside the wireless earphone 10, so that the wireless earphone 10 has better noise reduction effect. In some embodiments, the cavity wall of the accommodating cavity 23 is provided with a second groove 232, the first groove 231 is arranged on the bottom of the second groove 232, and the bottom edge of the second groove 232 and the top edge of the first groove 231 form a stepped surface 233. The waterproof cloth 42 is fixed on the stepped surface 233 and covers the first groove 231. The stepped surface 233 can improve the stability of the waterproof cloth 42. The wireless earphone 10 further comprises an ear hook 60, one end of the metal shell 20 is connected with the ear hook 60, and the ear hook 6040 can be used to contact the skin of the user. Specifically, the ear hook 60 can be a curved hanging arm or a clamping piece. In one embodiment, the ear hook 60 is bent and extends around the metal shell 20. The ear hook 60 can play a supporting role. When the user uses the earphone, the ear hook 60 can be hung on the pinna of the user, so that the wireless earphone 10 is fixed on the ear of the user. In some embodiments, the ear hook 60 can adopt the shape of the pinna, and the ear hook 60 is usually arranged in an arc shape. In some embodiments, the ear hook 60 can also be customized according to the needs of the user to improve the comfort of the user when wearing the earphone.

[0038] Referring to Figure 3 , Figure 7 , Figure 8 ,Figure 9 and Figure 10 In some embodiments, the cavity wall of the accommodating cavity 23 forms a groove 230, the sound hole 21 is arranged on the groove bottom of the groove 230, the loudspeaker 30 is partially arranged in the groove 230, the position of the loudspeaker 30 in the accommodating cavity 23 can be fixed, the first mesa 2301 is formed in the groove 230, the second groove body 232 is arranged on the first mesa 2301, which is beneficial to reduce the overall volume of the wireless earphone 10 and make the internal assembly of the wireless earphone 10 more compact.

[0039] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0040] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A wireless earphone, characterized by, The metal shell is provided with a sound outlet hole and a sound pickup hole, and a containing cavity is formed in the metal shell.

2. The wireless earpiece of claim 1, wherein, An insulating piece is arranged outside the horn and connected between the horn and the cavity wall of the containing cavity.

3. The wireless earpiece of claim 2, wherein, The insulating piece is a silica gel sleeve, which is sleeved on the front end surface of the horn and abuts against the cavity wall of the containing cavity.

4. The wireless earpiece of claim 1, wherein, The metal shell is provided with an arc surface, and the sound outlet hole and the sound pickup hole are arranged on the same arc surface.

5. The wireless earpiece of claim 1, wherein, The cavity wall of the containing cavity is provided with a first groove, and the sound pickup hole is arranged on the groove bottom of the first groove.

6. The wireless earpiece of claim 5, wherein, The noise reduction microphone assembly is arranged on the cavity wall of the containing cavity.

7. The wireless earpiece of claim 6, wherein, The noise reduction microphone assembly comprises a microphone and an insulating reinforcing plate, the microphone is arranged on the insulating reinforcing plate and spaced from the cavity wall of the containing cavity, and the insulating reinforcing plate is fixed on the cavity wall of the containing cavity.

8. The wireless earpiece of claim 6, wherein, The waterproof cloth is arranged between the noise reduction microphone assembly and the groove bottom of the first groove.

9. The wireless earpiece of claim 8, wherein, The cavity wall of the containing cavity is provided with a second groove, the first groove is arranged on the groove bottom of the second groove, a stepped surface is formed between the groove bottom edge of the second groove and the groove top edge of the first groove, the waterproof cloth is fixed on the stepped surface and covers the first groove.

10. The wireless earpiece of claim 9, wherein, The cavity wall of the containing cavity is provided with a groove, the sound outlet hole is arranged on the groove bottom of the groove, the horn is partially arranged in the groove, a first platform is formed by protrusion in the groove, and the second groove is arranged on the first platform.

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