Earphone seat and wearable business earphone
By designing a detachable headphone holder and panel connection method, the problems of traditional headphones lacking fixation and limited functionality are solved, achieving stable storage and personalized customization of headphones, improving user experience and the aesthetics of the office environment.
Patent Information
- Application Number
- CN202422753771.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Traditional wearable headphones lack dedicated stands or fixing devices, making them prone to damage and loss, and affecting the professionalism and aesthetics of the office environment. Existing headphone holders have limited functionality and cannot meet users' personalized needs.
Design a detachable headphone holder, including a headphone holder body and a panel. The panel is detachably connected to the headphone holder body, supporting the replacement of panels with different designs or functions. Combined with magnetic or snap-fit connections, the headphone holder body and panel with power supply function can realize display function.
It achieves stable headphone mounting and allows for customization of personalized appearance and functions, enhancing the user experience and the professionalism and aesthetics of the office environment, while also improving the durability and flexibility of the headphone holder.
Smart Images

Figure CN223515025U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of wearable business headset technology, specifically relating to a headset holder and wearable business headset. Background Technology
[0002] Wearable headsets are widely used in various professional fields such as business, education, and customer service due to their comfortable wearing experience and good sound quality. Especially in business office environments, wearable headsets have become an important tool for conducting conference calls, online communication, and remote collaboration.
[0003] Traditional wearable headphones often lack dedicated stands or mounting devices, leading users to casually place them on desks or other flat surfaces when not in use. This not only increases the risk of damage or loss but also makes the workspace appear cluttered, negatively impacting the professionalism and aesthetics of the office environment.
[0004] To address this issue, headphone stands that can store and support wearable headphones have appeared on the market, but their functions are limited and cannot meet users' personalized needs. Utility Model Content
[0005] In view of the above problems, the purpose of this application is to provide a headphone holder and a wearable business headphone that can stably fix the headphone in a business office environment, and has a flexible design that allows customers to change the appearance or function of the headphone holder according to their personalized needs, thereby meeting the personalized needs of users and improving the professionalism and aesthetics of the office environment.
[0006] According to one aspect of the embodiments of this application, an earphone holder is provided, which is applied to wearable business earphones and includes an earphone holder body and a panel. The panel is detachably connected to the earphone holder body to replace the panel with a different design or different function.
[0007] Optionally, the headphone holder body has multiple magnetic points, and the panel is magnetically connected to the headphone holder body.
[0008] Optionally, the headphone holder is connected to the panel via a clip.
[0009] Optionally, the headphone holder body is provided with a power supply unit, and the panel includes a clearance groove that cooperates with the power supply unit.
[0010] Optionally, the power supply unit is provided with power supply contacts, and the panel is provided with corresponding contact points. When the panel is connected to the headphone jack body, the contact points make contact with the power supply contacts.
[0011] Optionally, the headphone holder body includes a base and a stand, with the power supply located on the side of the stand away from the base, and the panel is detachably connected to the stand.
[0012] Optionally, the stand has a positioning slot for connecting with the headphones, and the power supply contacts are located above the positioning slot.
[0013] Optionally, the headphone jack may also include a first control module, which is used to determine that the panel is a display panel when the power supply contact is triggered.
[0014] Optionally, the headphone jack also includes a first communication module for wireless connection and data exchange with external devices; the display panel includes an interactive interface, a display control module, and a second communication module; the second communication module is connected to the first communication module; the display control module is used to receive data sent by the first communication module and control the interactive interface to display data from external devices; the interactive interface is also used to respond to user commands and send them to the first communication module through the second communication module.
[0015] According to another aspect of the embodiments of this application, a wearable business headset is provided, including a headset body, which is used for mating and connecting with any of the above-mentioned headset holders.
[0016] Optionally, the earphone body includes a shell, a handset, and a receiver. The receiver and handset are respectively connected to the two sides of the shell. There is a gap between the handset and the shell. The handset and the shell are rotatably connected. The earphone base body includes a base and a bracket. The bracket is provided with a positioning groove that mates with the handset.
[0017] Optionally, the first positioning groove is connected to the housing; the second positioning groove is located between the earpiece and the housing; the first positioning groove and the second positioning groove are stepped.
[0018] Optionally, the earphone holder body also includes a power supply unit, which has power supply contacts located on the first positioning groove; a discharge contact is provided on the second positioning groove, and a charging contact is provided between the earpiece and the housing. When the housing is connected to the first positioning groove, the charging contact located between the earpiece and the housing is connected to the discharge contact.
[0019] The beneficial effects of this application are: it solves the problems of inconvenient storage, limited appearance and functionality of existing wearable business headphones, and lack of flexibility. The headphone holder of this application features a detachable panel, allowing users to remove and replace panels with different appearances or functions according to their personal preferences. Through personalized customization of appearance and function, users can have a unique headphone holder, satisfying their pursuit of individuality and uniqueness. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the headphone holder provided in an embodiment of this application;
[0022] Figure 2 This is an exploded view of the headphone holder provided in an embodiment of this application;
[0023] Figure 3 This is a schematic diagram of the structure of the headphone holder body and the display panel provided in the embodiments of this application;
[0024] Figure 4 A schematic diagram of the module interaction of the headphone holder provided in the embodiments of this application.
[0025] Figure 5 This is a schematic diagram of the structure of the earphone body and earphone holder provided in the embodiments of this application;
[0026] Figure 6 This is another structural schematic diagram of the headphone holder body provided in the embodiments of this application;
[0027] Figure 7 This is a schematic diagram of the structure of the earphone body provided in an embodiment of this application;
[0028] Figure 8 for Figure 7 A magnified structural diagram of part A in the middle.
[0029] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding.
[0030] The reference numerals in the detailed embodiments are as follows:
[0031] 100. Headphone holder; 110. Headphone holder body; 111. Base; 112. Stand; 113. Positioning groove; 113a. First positioning groove; 113b. Second positioning groove; 114. Power supply unit; 115. Power supply contact; 116. Magnetic attachment point; 117. First control module; 118. First communication module; 119. Magnetic attachment point;
[0032] 120. Panel; 121. Display panel; 122. Interactive interface; 123. Display control module; 124. Second communication module; 125. Clearance slot; 130. Discharge contact;
[0033] 200. Wearable business headset; 210. Headset body; 211. Shell; 212. Earpiece; 213. Receiver; 214. Gap; 215. Charging interface; 216. Charging contacts. Detailed Implementation
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0035] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0036] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0037] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0038] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components, and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.
[0039] It should also be understood that the terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0040] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0041] In business environments, wireless wearable business headsets typically need to be paired with devices such as office computers or smartphones for efficient work communication. However, how to properly store and secure these headsets when not in use, so as to facilitate quick access while maintaining a tidy work environment, is a pressing issue that the industry needs to address.
[0042] There are some problems with headphone holders on the market, such as the brackets not being stable enough to provide reliable fixation for the headphones, causing them to easily slide or fall when placed or hung. Of course, some headphone holders provide a more secure fixation, but their structures are complex, such as requiring fixation on both sides of the headphones.
[0043] Furthermore, existing headphone holders can only position and locate headphones, and cannot allow for the replacement of the faceplate. This results in a monotonous external structure that cannot be easily changed according to the user's preferences, thus affecting the user experience.
[0044] In view of this, one aspect of the embodiments of this application is to provide an earphone holder specifically designed for wearable business Bluetooth headsets, which facilitates the placement of wearable business headsets and is designed with a panel that can be changed by the user according to personal preferences and needs, thereby diversifying the appearance and function of the earphone holder and improving the user experience.
[0045] like Figure 1 and Figure 2 As shown, the headphone holder 100 in this embodiment includes a headphone holder body 110 and a panel 120. The panel 120 is detachably connected to the headphone holder body 110 so that a panel 120 with different design or different function can be replaced.
[0046] The panel 120 is detachably connected to the headphone holder body 110 to allow for replacement with panels 120 that have different designs or functions. The panel 120 serves as a protective shell to protect the headphone holder 100, specifically protecting the internal components of the headphone holder 100 and providing waterproofing and drop protection.
[0047] The panel 120 is designed to be detachably connected to the headphone jack body 110, providing users with great flexibility and personalization options. Users can easily replace the panel 120 with different colors, materials, or patterns according to their preferences or needs. They can also choose a panel 120 with integrated functions, such as a panel 120 with a display function, thereby increasing the fun of DIY and the aesthetics of the product.
[0048] In addition, the panel 120, which serves as the protective shell of the headphone jack body 110, is designed to be detachable. If the shell, i.e., the panel 120, becomes worn or damaged after long-term use of the headphone jack 100, the user can easily replace the panel 120, thereby enhancing the durability of the headphone jack 100 and extending its service life.
[0049] Please continue to refer to this. Figure 1 and Figure 2 The headphone holder body 110 includes a base 111 and a bracket 112, which together form a fixed frame for receiving headphones; the bracket 112 is provided with a positioning groove 113 that is connected to the headphones.
[0050] The base 111 is designed for stable docking with the office desktop, ensuring the overall stability of the headphone holder 100. The bracket 112, perpendicular to the base 111, is used for convenient storage and hanging of the headphones, preventing careless placement and potential damage. The specially designed positioning groove 113 and fixing block on the bracket 112 precisely match the headphones, providing a simple and effective way to secure them. This ensures the headphones are safe and easy to access when not in use, while maintaining a clean and professional office space.
[0051] like Figure 2 and Figure 3 As shown in the embodiment where the panel 120 and the headphone base 110 are detachably connected, the panel 120 is connected to the side of the bracket 112 opposite to the base 111. In this embodiment, the bracket 112 is provided with multiple magnets, and multiple magnetic attraction points 116 are provided on the side of the bracket 112 facing the panel 120. The panel 120 and the bracket 112 are magnetically connected, making the disassembly and installation of the panel 120 very convenient, ensuring a stable connection between the panel 120 and the bracket 112, and making it easy to install the panel 120 in a specific position. The magnetic attraction method facilitates the disassembly and replacement of the panel 120 and the headphone base 110, and makes the sides of the panel 120 smoother and the appearance more streamlined.
[0052] It should be noted that the face cover and the headphone base body 110 in this embodiment can also be connected by snap-fit or other detachable connection methods, and the panel 120 can also be detachably connected to the base 111 of the headphone base body 110. No limitation is made here.
[0053] The panel 120 can also be designed to be detachably connected to the base 111. The panel 120 can be detachably connected to the bracket or base through the above-mentioned magnetic, snap-on or other mechanical connection methods, which is convenient for user operation. Alternatively, it can be designed as a protective cover, which is directly fitted and surrounds the surface of the headphone base body, so that the panel 120 can fully protect the headphone base body, providing additional protection for the headphone base body, preventing the headphone base from being impacted or worn, and also enhancing the durability of the headphone base.
[0054] Alternatively, the panel 120 can also be sandwiched between two parts in the headphone holder body. The headphone holder body has a gap inside for panel installation, so that users can install or remove the panel through the gap, which not only avoids frequent disassembly and assembly steps, but also plays a buffering role.
[0055] As described above, panel 120 can be a non-functional panel 120 used only for aesthetics and to protect internal components, or it can be a functional panel 120 that requires power. Functional panels 120 typically require power to activate their functions, which necessitates that when panel 120 is connected to headphone jack body 110, headphone jack body 110 must be able to provide power to panel 120. Taking display panel 121 with display function as an example, such as... Figure 3 As shown, in the embodiment where the panel 120 and the bracket 112 are detachably connected, the bracket 112 is provided with a power supply unit 114. The power supply unit 114 is located on the side of the bracket 112 away from the base 111. The housing 211 of the power supply unit 114 is flush with the positioning groove 113, and the power supply contact 115 protrudes slightly from the edge of the positioning groove 113. Correspondingly, the display panel 121 is provided with a clearance groove 125, which is adapted to the housing 211 of the power supply unit 114. The clearance groove 125 is provided with a power-taking contact (not shown). When the user needs to replace this display panel 120, after the display panel 121 is connected to the bracket 112 through the magnetic attachment point 116, the power-taking contact on the display panel 121 contacts the power supply contact 115 on the bracket 112 to obtain power and realize its display function, such as displaying notifications, status information, or an interface for user operation.
[0056] Since the non-functional panel 120 does not require power, it does not have power-feeding contacts. When the panel 120 is installed and connected to the bracket 112, the power supply contact 115 is not triggered. However, after the functional panel 120 is connected to the bracket 112 via the magnetic point 116, power is obtained through contact between the power-feeding contacts and the power supply contact 115. Therefore, please refer to... Figures 1 to 4 The headphone jack 100 also integrates a first control module 117, which determines whether the panel 120 has a functional panel 120 by whether the power supply contact 115 of the power supply unit 114 is triggered.
[0057] Taking the functional panel 120 as an example, which is a panel with screen display function, the display panel 121 includes an interactive interface 122, a display control module 123, and a second communication module 124; the second communication module 124 is connected to the first communication module 118; the display control module 123 is used to receive data sent by the first communication module 118 and control the interactive interface 122 to display data from external devices; the interactive interface 122 is also used to respond to user commands and send them to the first communication module 118 through the second communication module 124.
[0058] When the first control module 117 determines that the currently connected panel 120 is a display panel 121 with display function, the first control module 117 will activate display-related functions, such as lighting up the display screen (interactive interface 122) on the panel 120, controlling the first communication module 118 (located on the headphone jack body 110) to establish a connection with the second communication module 124 (located on the display panel 121), for example, through Bluetooth, Wi-Fi or other short-range wireless communication technologies, and activating the display control module 123 and the first communication module 118. The second communication module 124 receives data from external devices (such as computers or mobile phones) connected to the headphone jack 100 and transmits the data stream to the display control module 123. The display control module 123 controls the interactive interface 122 to display this data for the user to view, based on the specific data stream received, such as audio data streams, specifically (on a computer) incoming call display, message notifications, or music playback information.
[0059] The interactive interface 122 not only displays information but also allows users to receive commands via touch. The display control module 123 receives these user commands and sends them back to the first communication module 118 on the headphone jack 100 via the second communication module 124. After receiving the user commands from the display panel 121, the first communication module 118 on the headphone jack 100 responds to the user commands by executing commands on external devices through a data interface or communication module, such as answering or hanging up a phone call when there is an incoming call on the computer, or controlling the playback and pause of music on the computer or adjusting the volume.
[0060] According to another aspect of this application, such as Figures 5 to 8 As shown, a wearable business headset 200 is provided, including a headset body 210, which is connected to any of the aforementioned headset holders 100.
[0061] It should be noted that the earphone body in this application embodiment can be in various forms for user wear, such as over-ear, neckband, or ear-hook. It can have two earpieces corresponding to the left and right ears respectively and working with a microphone, or it can be designed as a combination of a single earpiece and a microphone. Furthermore, the "business" application scenario or "business" earphone mentioned in this application embodiment is mainly to distinguish it from ordinary entertainment earphones used only for listening to audio. While entertainment earphones only need to ensure audio quality, business earphones also need to ensure call functionality to meet the needs of real-time communication, and have a certain high standard for audio communication quality. They should provide clear voice transmission and noise reduction effects in real-time communication scenarios such as teaching, remote work, and business meetings, thereby improving work efficiency and communication effectiveness.
[0062] In one embodiment of this application, such as Figure 5 and Figure 8 As shown, the earphone body 210 includes a housing 211, a handset 212 and a receiver 213. The receiver 213 and the handset 212 are respectively connected to the two sides of the housing 211. There is a gap 214 between the handset 212 and the housing 211. The handset 212 and the housing 211 are rotatably connected.
[0063] The earphone body 210 is a wireless Bluetooth earphone, and the shell 211 of the earphone body 210, also known as the headband, is for the user to wear. Two earpieces 212 are respectively located on both sides of the shell 211, corresponding to the user's left and right ears. The earpieces 212 are used to convert the audio signals from the computer and / or mobile phone connected to the earphone body 210 via Bluetooth into audio signals that can be heard by the user. The receiver 213, or microphone, is located at one end of the shell 211 and is used to capture the user's voice and convert it into audio signals that can be used for Bluetooth calls via computer or mobile phone.
[0064] To improve the wearing comfort of the earphone body 210, the earphone body 210 is designed with a gap 214 between the earpiece 212 and the shell 211, allowing the earpiece 212 approximately 15° of swing space. Users can adjust the angle of the earpiece 212 according to their head shape and ear shape, avoiding pressure on the upper or lower part of the ear during prolonged wear, reducing discomfort or pain, and enhancing the sealing of sound transmission. The earphone body 210 of this application provides good adaptability, improving the comfort and reliability of users with various head shapes or wearing habits when using earphones for extended periods in business environments.
[0065] Please continue to refer to this. Figures 5 to 8Because there is a gap 214 between the earpiece 212 and the housing 211, the positioning groove 113 of the earphone base 110 is stepped. The positioning groove 113 includes a first positioning groove 113a and a second positioning groove 113b. The first positioning groove 113a is connected to the housing 211. When the first positioning groove 113a is connected to the housing 211, the second positioning groove 113b is located in the gap 214, and the discharge contact 130119 on the second positioning groove 113b abuts against the charging contact in the gap 214. The stepped design of the first positioning groove 113a and the second positioning groove 113b provides additional support points for the earphone base 210, ensuring that the earphone base 210 will not fall off. At the same time, the stepped design of the positioning groove 113 also serves as a foolproof positioning feature.
[0066] Furthermore, the housing 211 also features a charging port 215, taking into account the practical needs of business people who frequently travel and work on the go. When users are not in the office environment or when the headphone dock 100 is unavailable, such as while traveling, they can directly charge the headphone body 210 through this charging port 215 and a standard external power adapter, ensuring normal use of the headphones at critical moments, improving the flexibility of battery life, and providing business users with continuous work communication support, maintaining communication connectivity and productivity no matter where they are.
[0067] This application's embodiment of the wearable business headset 200 solves the problem that existing wearable Bluetooth wireless headsets used in business environments lack a headphone holder 100, or that the headphone holder 100 cannot stably support and store the headset body 210. Meanwhile, the headphone holder 100 has a simple structure and is easy to operate; it only needs to be fixed on one side to stably support the headset, greatly improving the user experience. Specifically, the bracket 112 is provided with a positioning groove 113 that mates with the headset body 210, and the positioning groove 113 is adapted to the shape of the headset's earpiece 212.
[0068] The positioning slot 113 enables quick docking and accurate positioning of the earpiece 212 and the headphone holder 100, ensuring that the headphone body 210 is firmly fixed in place and preventing loosening or falling off. The semi-open design of the positioning slot 113 improves the convenience of placing and removing the headphone body 210, making it easier and faster to put and take off the headphones and improving business work efficiency. Meanwhile, the base 111 and the bracket 112 are integrally molded and perpendicularly arranged, resulting in a simple structure and convenient operation for the headphone holder 100. Only one side needs to be fixed to stably support the headphones, greatly improving the user experience.
[0069] In this embodiment, the positioning groove 113 can be a through groove or a recessed groove. The positioning groove 113 can also be any positioning part on the headphone holder 100 for placing the headphone body 210, or a position connected to the headphone body 120.
[0070] Regarding the embodiments of this application, it should also be noted that, unless otherwise specified, the embodiments and features described herein can be combined to obtain new embodiments. The above description is merely a preferred embodiment of this application and does not constitute any limitation on this application. The scope of protection of this application should be determined by the scope of the claims. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall fall within the scope of the technical solution of this application.
Claims
1. An earphone holder, characterized in that, The headphone holder is used in wearable business headphones and includes a headphone holder body and a panel. The panel is detachably connected to the headphone holder body to allow for the replacement of panels with different designs or functions.
2. The earphone holder according to claim 1, characterized in that, The headphone holder body is provided with multiple magnetic points, and the panel is magnetically connected to the headphone holder body.
3. The earphone holder according to claim 1, characterized in that, The headphone holder body is connected to the panel by a snap fastener.
4. The earphone holder according to any one of claims 1-3, characterized in that, The headphone holder body is provided with a power supply unit, and the panel includes a clearance groove that cooperates with the power supply unit.
5. The earphone holder according to claim 4, characterized in that, The power supply unit is provided with power supply contacts, and the panel is provided with corresponding contact points. When the panel is connected to the headphone jack body, the contact points contact with the power supply contacts.
6. The earphone holder according to claim 5, characterized in that, The headphone holder body includes a base and a bracket, the power supply unit is located on the side of the bracket away from the base, and the panel is detachably connected to the bracket.
7. The earphone holder according to claim 6, characterized in that, The bracket is provided with a positioning groove that connects with the earphone, and the power supply contact is located above the positioning groove.
8. The earphone holder according to claim 5, characterized in that, The headphone jack also includes a first control module, which is used to determine that the panel is a display panel when the power supply contact is triggered.
9. The earphone holder according to claim 8, characterized in that, The headphone jack also includes a first communication module for wireless connection and data exchange with external devices; The display panel includes an interactive interface, a display control module, and a second communication module; The second communication module is connected to the first communication module; The display control module is used to receive data sent by the first communication module and control the interactive interface to display the data of the external device; The interactive interface is also used to respond to user commands and send them to the first communication module via the second communication module.
10. A wearable business headset, characterized in that, The wearable business headset includes a headset body, which is used to connect and cooperate with the headset holder according to any one of claims 1-9.
11. The wearable business headset according to claim 10, characterized in that, The earphone body includes a shell, an earpiece, and a receiver; there is a gap between the earpiece and the shell, and the earpiece is rotatably connected to the shell; The earphone holder body includes a base and a bracket, and the bracket is provided with a positioning groove that cooperates with and connects to the earpiece.
12. The wearable business headset according to claim 11, characterized in that, The positioning groove includes a first positioning groove and a second positioning groove; The first positioning groove is connected to the housing; the second positioning groove is located between the earpiece and the housing; the first positioning groove and the second positioning groove are stepped.
13. The wearable business headset according to claim 12, characterized in that, The headphone holder body also includes a power supply unit, which has power supply contacts located on the first positioning groove. The second positioning groove is provided with a discharge contact, and the earpiece and the housing are provided with a charging contact. When the housing is connected to the first positioning groove, the charging contact located between the earpiece and the housing is connected to the discharge contact.