Earphone with detachable battery and earphone assembly

Abstract

The utility model discloses an earphone with a detachable battery and an earphone assembly. The earphone with the detachable battery comprises a shell assembly, the battery, a conductive piece and a mainboard, the shell assembly is provided with an accommodating cavity; the main board is arranged in the accommodating cavity; the conductive part is electrically connected with the mainboard; a containing groove is formed in the outer side wall of the shell assembly; and the battery can be accommodated in the accommodating groove, is detachably connected with the shell assembly, and is electrically connected with the conductive piece. The detachable battery is realized, the service life of the earphone is prolonged, the user experience is improved, resource waste and environmental pollution are reduced, and sustainable development is realized.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to a headphone and headphone assembly with a removable battery. Background Technology

[0002] In the current headphone market, most Bluetooth headphones adopt an integrated design, a trend that has become increasingly prominent in recent years and is now the mainstream direction in the industry. An integrated design cleverly integrates all the core components of a Bluetooth headphone (including the battery, speaker, microphone, and control unit) into a compact and robust shell, forming a unified whole.

[0003] This design philosophy not only gives Bluetooth headsets a simpler, smoother aesthetic, making them more stylish and elegant, but also significantly improves the product's portability and durability. The integrated construction reduces gaps and connection points between components, effectively preventing the intrusion of external factors such as dust and moisture, thus extending the headset's lifespan. Furthermore, the compact size makes the Bluetooth headset lighter and easier for users to carry around. Utility Model Content

[0004] In order to extend the lifespan of headphones, improve user experience, reduce resource waste and environmental pollution, and achieve sustainable development, this utility model provides headphones and headphone components with removable batteries.

[0005] In a first aspect, this utility model provides an earphone with a removable battery, comprising: a housing assembly, a battery, a conductive component, and a motherboard;

[0006] The housing assembly is provided with a receiving cavity;

[0007] The mainboard is disposed within the receiving cavity;

[0008] The conductive component is electrically connected to the motherboard;

[0009] The outer side wall of the housing assembly has a receiving groove;

[0010] The battery can be housed in the receiving slot and detachably connected to the housing assembly, and is electrically connected to the conductive element.

[0011] Optionally, a retaining strip is provided around the inner ring of the receiving groove;

[0012] The battery ring is provided with a locking groove, and a limiting strip is provided in the locking groove;

[0013] The battery can rotate within the receiving slot until the locking strip engages with the limiting strip.

[0014] Optionally, the conductive element is provided with an elastic sheet;

[0015] The bottom of the receiving groove is provided with a receiving hole;

[0016] The elastic sheet can extend through the receiving hole into the receiving groove and be electrically connected to the battery when the snap-fit ​​strip and the limiting strip are in the snap-fit ​​state.

[0017] Optionally, the earphone with the removable battery also includes a soft rubber ring fitted around the periphery of the battery;

[0018] The soft rubber ring is used to abut against the bottom of the receiving groove when the snap-fit ​​strip and the limiting strip are snapped together.

[0019] Optionally, the outer edge of the limiting strip abuts against the bottom and left end of the snap-fit ​​groove;

[0020] The battery can rotate within the receiving groove until the locking strip abuts against the upper end of the limiting strip, and one end of the locking strip abuts against the left end of the locking groove.

[0021] Optionally, the outer wall of the battery is provided with an inlet cavity;

[0022] The access cavity allows an external tool to be inserted, which drives the battery to rotate within the receiving slot.

[0023] Optionally, the outer wall of the battery is provided with protrusions or grooves.

[0024] Optionally, the housing assembly includes a first outer shell and a second outer shell;

[0025] The first outer shell includes a first grip portion and a first ear inlet portion, wherein the first ear inlet portion has the receiving groove;

[0026] The second outer shell includes a second grip portion and a second earpiece portion;

[0027] The first grip portion can engage with the second grip portion, and the receiving cavity is formed between the first grip portion and the second grip portion;

[0028] The first ear inlet can be engaged with the second ear inlet.

[0029] Secondly, embodiments of the present invention provide an earphone assembly, including a charging case and the earphones described in the first aspect.

[0030] Optionally, the headphone assembly may also include multiple backup batteries;

[0031] The charging box has a battery compartment;

[0032] The battery compartment can accommodate multiple of the spare batteries.

[0033] The beneficial effects of the above-mentioned technical solutions provided in the embodiments of this utility model include at least the following:

[0034] This invention provides a removable battery earphone. A receiving groove is formed on the outer wall of the housing assembly, which has a receiving cavity. The main board is located within the receiving cavity and is electrically connected to the main board via a conductive component. The battery can be detachably connected to the housing assembly and the conductive component within the receiving groove. This removable battery design allows for quick battery replacement, solving the problem of non-removable batteries in traditional Bluetooth earphones. Users can continue using the earphones by replacing the battery without waiting for a long charging time, which is especially beneficial when the earphones are urgently needed but the battery is low, improving convenience and user experience. When the battery performance degrades due to prolonged use or natural degradation, users only need to replace the battery instead of the entire earphone, extending the earphone's lifespan, saving significant costs, and reducing resource waste and environmental pollution to some extent, thus achieving sustainable development.

[0035] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0036] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0037] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0038] Figure 1 This is a schematic diagram of the overall structure of the earphone with a removable battery provided in an embodiment of this utility model;

[0039] Figure 2 This is an assembly diagram of the earphone with a removable battery provided in an embodiment of this utility model;

[0040] Figure 3 This is a schematic diagram of the battery structure provided in the embodiments of this utility model;

[0041] Figure 4 This is a flowchart illustrating the battery disassembly process provided in an embodiment of this utility model.

[0042] Figure 5 for Figure 1 Cross-sectional view;

[0043] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0044] Figure 7 This is a schematic flowchart illustrating the battery disassembly process under the action of external tools provided in an embodiment of this utility model.

[0045] Figure 8 This is a schematic diagram of the protrusion provided in an embodiment of the present utility model;

[0046] Figure 9 This is a schematic flowchart illustrating the battery disassembly process under the action of the protrusion in an embodiment of this utility model.

[0047] Figure 10 This is a schematic diagram of the connection points provided in the embodiments of this utility model;

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Housing assembly; 11. Receiving cavity; 12. Receiving groove; 121. Snap-fit ​​strip; 13. First outer shell; 131. First grip portion; 132. First earpiece; 14. Second outer shell; 141. Second grip portion; 142. Second earpiece; 2. Battery; 21. Snap-fit ​​groove; 22. Limiting strip; 23. Protrusion; 24. Connecting contact point; 3. Conductive component; 31. Elastic sheet; 4. Main board; 5. Soft rubber ring; 6. Sound outlet; 7. External tool. Detailed Implementation

[0050] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0051] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] The inventors discovered that in existing all-in-one earphone designs, all components, including the battery, are built-in. Once the battery is depleted, users can only resume use by charging, which undoubtedly brings many inconveniences to daily carrying and use. Especially during long trips or extended outdoor activities, if the Bluetooth earphone is not charged in time, it may become useless and unable to meet immediate communication or entertainment needs.

[0054] When batteries age or fail, users often cannot replace them themselves and need to seek professional repair services or purchase new Bluetooth headsets. This increases the user's cost and time, and also leads to significant resource waste and environmental pollution.

[0055] To address the aforementioned issues, the inventors developed a removable battery-equipped earphone and earphone assembly. This removable battery design allows users to easily replace the battery, extending the earphone's lifespan, improving the user experience, and reducing resource waste and environmental pollution to some extent, thus contributing to sustainable development.

[0056] Example 1

[0057] See Figures 1-4 This embodiment proposes a removable battery earphone, which includes: a housing assembly 1, a battery 2, a conductive element 3, and a main board 4. The housing assembly 1 has a receiving cavity 11, and the main board 4 is disposed within the receiving cavity 11. The conductive element 3 is electrically connected to the main board 4. A receiving groove 12 is formed on the outer side wall of the housing assembly 1, in which the battery 2 can be accommodated and detachably connected to the housing assembly 1, while also being electrically connected to the conductive element 3. That is, while achieving a physical connection between the battery 2 and the housing assembly 1, an electrical connection between the battery 2 and the conductive element 3 is also achieved. Through this ingenious design, it is convenient for users to replace the battery, while ensuring the stability and reliability of the battery 2 powering the earphone.

[0058] The earphones in this embodiment utilize a removable battery design, allowing for quick replacement of battery 2, thus solving the problem of non-removable batteries in traditional Bluetooth earphones. Users can continue using the earphones by replacing battery 2 without waiting for a long charging time, which is especially beneficial when the earphones are urgently needed but the battery is low, improving convenience and user experience. When battery 2 experiences performance degradation due to prolonged use or natural degradation, users only need to replace battery 2 instead of the entire earphone, extending the earphone's lifespan, saving significant costs, and also reducing resource waste and environmental pollution to some extent, thus achieving sustainable development.

[0059] In one specific embodiment, see [reference] Figure 2 and Figure 3 The receiving groove 12 has a retaining strip 121 on its inner ring, and the battery 2 has a retaining groove 21 on its ring. A limiting strip 22 is provided inside the retaining groove 21. The battery 2 can rotate within the receiving groove 12 until the retaining strip 121 engages with the limiting strip 22, thus achieving a secure connection between the battery 2 and the entire housing assembly 1. This retaining method enables a detachable connection between the battery 2 and the housing assembly 1. Users can easily install or remove the battery by simply rotating it, facilitating battery replacement.

[0060] In one specific embodiment, see [reference] Figure 2 and Figure 3 The conductive component 3 is provided with an elastic sheet 31, and a receiving hole (not shown in the figure) is provided at the bottom of the receiving groove 12. (See reference...) Figure 4 When the battery 2 is not yet housed in the receiving slot 12, the elastic piece 31 can extend through the receiving hole into the receiving slot 12, at which point the elastic piece 31 is in a free state. When the snap-fit ​​strip 121 snaps into the limiting strip 22, the battery 2 will compress and abut against the elastic piece 31, allowing the battery 2 to form a tight contact with the elastic piece 31, ensuring electrical connection between the battery 2 and the elastic piece 31. Through the elastic piece 31, the battery 2 is electrically connected to the mainboard 4, thereby ensuring the normal operation of the entire earphone.

[0061] In one specific embodiment, see [reference] Figure 2 , Figure 3 , Figure 5 and Figure 6 The earphone also includes a soft rubber ring 5 surrounding the battery 2. When the battery 2 is engaged in the receiving groove 12 via the snap-fit ​​strip 121 and the limiting strip 22, the soft rubber ring 5 tightly abuts against the bottom of the receiving groove 12, achieving a sealing effect. This prevents external contaminants such as moisture and dust from entering the housing assembly 1, thereby protecting the motherboard 4 and other critical components from damage. Raised or recessed structures can be provided on the soft rubber ring 5 to enhance the friction between the soft rubber ring 5 and the bottom of the receiving groove 12, thereby improving the sealing effect.

[0062] In one specific embodiment, see [reference] Figure 2 and Figure 3 The outer edge of the limiting strip 22 abuts against the bottom and left end of the locking groove 21, limiting the rotation range of the battery 2 and providing a clear stopping position for the locking strip 121. When the battery 2 rotates within the receiving groove 12 until the locking strip 121 abuts against the upper end of the limiting strip 22, and one end of the locking strip 121 abuts against the left end of the locking groove 21, the battery 2 can no longer rotate under the restriction of the locking groove 21. The user will feel a noticeable resistance or a feeling of "not being able to rotate," indicating that the battery 2 has rotated into place and is fixed in the correct position. This embodiment not only improves the ease of battery 2 installation but also provides clear installation guidance to the user through physical feedback, improving the overall performance and user experience of the headphones.

[0063] When installing battery 2, place battery 2 into the receiving slot 12 and drive battery 2 to rotate counterclockwise until one end of the locking strip 121 abuts against the left end of the locking slot 21. Battery 2 is then in place, completing the installation of battery 2. (See reference...) Figure 3 and Figure 4 When it is necessary to remove battery 2, drive battery 2 to rotate clockwise until the locking strip 121 and the limiting strip 22 no longer abut, and battery 2 can be taken out from the receiving slot 12.

[0064] Of course, in other embodiments, see Figure 3 The outer edge of the limiting strip 22 can abut against the top and left end of the snap-fit ​​groove 21, and the snap-fit ​​strip 121 will abut against the lower end of the limiting strip 22, thereby fixing the position of the battery 2.

[0065] In other embodiments, see Figure 3 The outer edge of the limiting strip 22 can abut against the bottom and right end of the locking groove 21, and the locking strip 121 will abut against the upper end of the limiting strip 22. It is worth noting that when installing the battery 2, it needs to be rotated clockwise, and when removing the battery 2, it needs to be rotated counterclockwise. In addition, the outer edge of the limiting strip 22 can abut against the top and right end of the locking groove 21, and the locking strip 121 will abut against the lower end of the limiting strip 22. The position of the limiting strip 22 can be selected according to the commonly used force application method, making the installation and removal of the battery 2 more ergonomic.

[0066] In one specific embodiment, see [reference] Figure 2 , Figure 3 and Figure 7The outer wall of battery 2 has an access cavity (not shown in the figure), into which an external tool 7 (such as a screwdriver, pin, etc.) can be inserted. By applying appropriate force, the user can use the external tool 7 to drive battery 2 to rotate within the receiving groove 12 until the locking strip 121 engages with the limiting strip 22. Taking the outer edge of the limiting strip 22 abutting against the bottom and left end of the locking groove 21 as an example, under the action of the external tool 7, a counterclockwise force is applied, causing battery 2 to rotate counterclockwise until the locking strip 121 engages with the limiting strip 22, achieving a secure connection. (See reference...) Figure 7 When battery 2 needs to be removed, a clockwise force is applied using external tool 7 to rotate battery 2 clockwise until the locking strip 121 disengages from the limiting strip 22, thus facilitating battery 2 replacement for the user. The access cavity and external tool 7 make the installation and removal of battery 2 quick and easy, requiring no complicated tools or steps. Users can replace battery 2 with a simple rotation, greatly saving time and effort.

[0067] In one specific embodiment, see [reference] Figure 2 , Figure 3 , Figure 8 and Figure 9 The outer wall of battery 2 has a protrusion 23. Users can directly hold and rotate battery 2 without any external tools 7. This protrusion 23 increases the friction when the user holds the battery, preventing slippage and facilitating easy installation and removal of battery 2, thus improving the user experience. Taking the outer edge of the limiting strip 22 abutting against the bottom and left end of the locking groove 21 as an example, when installing battery 2, a counter-clockwise force is applied using the protrusion 23, causing battery 2 to rotate counter-clockwise until the locking strip 121 engages with the limiting strip 22, achieving a secure connection. (See reference...) Figure 9 When it is necessary to remove the battery 2, the protrusion 23 is used to apply a clockwise force to rotate the battery 2 clockwise until the locking strip 121 is disconnected from the limiting strip 22, which makes it easy for the user to replace the battery 2.

[0068] In one specific embodiment, see [reference] Figure 2 , Figure 3 and Figure 9The outer wall of battery 2 has a groove (not shown in the figure), allowing the user's fingers to be directly inserted into the groove and rotated without the need for any external tools 7. This greatly simplifies the installation and removal process of battery 2 and improves the user experience. Taking the outer edge of the limiting strip 22 abutting against the bottom and left end of the locking groove 21 as an example, when installing battery 2, a counterclockwise force is applied using the groove to rotate battery 2 counterclockwise until the locking strip 121 engages with the limiting strip 22, achieving a secure connection. When removing battery 2, a clockwise force is applied using the groove to rotate battery 2 clockwise until the locking strip 121 disengages from the limiting strip 22, thus facilitating battery 2 replacement for the user.

[0069] In one specific embodiment, see [reference] Figure 2 The housing assembly 1 includes a first outer shell 13 and a second outer shell 14. The first outer shell 13 includes a first grip portion 131 and a first earpiece portion 132, which can be integrally formed to ensure structural stability and durability. The first earpiece portion 132 has a receiving groove 12 for accommodating the battery 2. The second outer shell 14 includes a second grip portion 141 and a second earpiece portion 142, which can be integrally formed. When the first outer shell 13 and the second outer shell 14 are fastened together, the positions of the first grip portion 131 and the second grip portion 141 correspond, and the positions of the first earpiece portion 132 and the second earpiece portion 142 correspond. The first grip portion 131 can engage with the second grip portion 141, forming a receiving cavity 11 between the first grip portion 131 and the second grip portion 141. This receiving cavity 11 is used to accommodate and protect the motherboard 4, and the first earpiece portion 132 can engage with the second earpiece portion 142.

[0070] Because battery 2 and motherboard 4 are separated into different areas, the overall structure of the headphones is not only more compact, achieving the goal of optimizing the use of internal space, but also more effectively avoiding problems such as heat and electromagnetic interference between motherboard 4 and battery 2, thereby improving the overall performance of the headphones.

[0071] See Figure 2 and Figure 5 The upper end of battery 2 (i.e. the end that does not abut against the bottom of the receiving slot 12) can be designed to be streamlined, echoing the lines of the entire earphone, thereby optimizing the overall lines of the earphone and improving its aesthetics and comfort.

[0072] In one specific embodiment, see [reference] Figure 1 and Figure 2The earphone also includes a sound outlet 6 connected to the second in-ear portion 142. This not only ensures structural stability but also helps optimize the sound transmission path. The tight connection between the sound outlet 6 and the second in-ear portion 142 reduces sound loss during transmission, thereby improving sound quality. The inner cavity of the sound outlet 6 houses a sound output module (not shown in the figure). This module is responsible for converting electrical signals into sound signals and precisely guiding them to the user's ear through the sound outlet 6. The sound output module may include components such as a speaker, FB microphone, call microphone, noise-canceling microphone, charging pin, in-ear detection, and FPC, as used in the prior art.

[0073] In one specific embodiment, see [reference] Figure 2 , Figure 4 and Figure 10 Battery 2 is equipped with a connecting contact point 24. When the locking strip 121 engages with the limiting strip 22, the connecting contact point 24 contacts the elastic sheet 31 and establishes an electrical connection. The connecting contact point 24 is typically configured with two points, one for positive and one for negative terminals, to ensure smooth power delivery to the entire earphone.

[0074] Example 2

[0075] Based on the same inventive concept, this embodiment proposes an earphone assembly, including a charging case and earphones with a removable battery as described in Embodiment 1.

[0076] In one specific embodiment, the earphone assembly also includes multiple backup batteries. The charging case has a battery compartment capable of accommodating multiple backup batteries. The specifications of the backup batteries are consistent with those of the batteries in Embodiment 1. When the currently used battery is depleted, the backup battery can be removed from the battery compartment to replace it. This provides users with a convenient and efficient battery life solution, meeting their usage needs in various scenarios and enhancing their user experience.

[0077] In one embodiment, the earphone assembly also includes a display screen disposed on the charging case. The display screen is electrically connected to each backup battery and has a first display area capable of displaying the battery level information of each backup battery. The battery level information is typically presented as a percentage or as icons, allowing the user to easily understand the remaining battery power. When the user needs to replace a battery, they can select the backup battery with the higher battery level based on the battery level information displayed on the screen, ensuring that the earphones continue to provide stable performance and battery life after battery replacement.

[0078] In one specific embodiment, the display screen also includes a second display area capable of displaying the degradation level of each backup battery, i.e., the performance decline of the battery during use. The degradation level is typically expressed as a percentage, graphic, or color change, helping users understand the battery's health and remaining lifespan. When the user needs to replace the battery, they can select the backup battery with the higher charge level based on the power information displayed on the screen, ensuring the headphones continue to provide stable performance and battery life after battery replacement. When the degradation level of a backup battery reaches a preset value, the user can promptly replace the backup battery to avoid affecting the headphone's performance due to battery degradation.

[0079] By adding a display screen, users are provided with a more intuitive and convenient way to understand the backup battery power and degradation level. This not only improves the user experience but also helps users make more reasonable battery replacement decisions, thereby ensuring the continuous and stable use of the headphones.

[0080] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.

Claims

1. A type of earphone with a removable battery, characterized in that, Includes: housing assembly, battery, conductive components, and motherboard; The housing assembly is provided with a receiving cavity; The mainboard is disposed within the receiving cavity; The conductive component is electrically connected to the motherboard; The outer side wall of the housing assembly has a receiving groove; The battery can be housed in the receiving slot and detachably connected to the housing assembly, and is electrically connected to the conductive element.

2. The earphone with a removable battery according to claim 1, characterized in that, The inner ring of the receiving groove is provided with a retaining strip; The battery ring is provided with a locking groove, and a limiting strip is provided in the locking groove; The battery can rotate within the receiving slot until the locking strip engages with the limiting strip.

3. The earphone with a removable battery according to claim 2, characterized in that, The conductive component is provided with an elastic sheet; The bottom of the receiving groove is provided with a receiving hole; The elastic sheet can extend through the receiving hole into the receiving groove and be electrically connected to the battery when the snap-fit ​​strip and the limiting strip are in the snap-fit ​​state.

4. The earphone with a removable battery according to claim 3, characterized in that, It also includes a soft rubber ring fitted around the outer periphery of the battery; The soft rubber ring is used to abut against the bottom of the receiving groove when the snap-fit ​​strip and the limiting strip are snapped together.

5. The earphone with a removable battery according to claim 4, characterized in that, The outer edge of the limiting strip abuts against the bottom and left end of the snap-fit ​​groove; The battery can rotate within the receiving groove until the locking strip abuts against the upper end of the limiting strip, and one end of the locking strip abuts against the left end of the locking groove.

6. The earphone with a removable battery according to any one of claims 1-5, characterized in that, The outer wall of the battery is provided with an inlet cavity; The access cavity allows an external tool to be inserted, which drives the battery to rotate within the receiving slot.

7. The earphone with a removable battery according to any one of claims 1-5, characterized in that, The outer wall of the battery is provided with protrusions or grooves.

8. The earphone with a removable battery according to claim 1, characterized in that, The housing assembly includes a first outer shell and a second outer shell; The first outer shell includes a first grip portion and a first ear inlet portion, wherein the first ear inlet portion has the receiving groove; The second outer shell includes a second grip portion and a second earpiece portion; The first grip portion can engage with the second grip portion, and the receiving cavity is formed between the first grip portion and the second grip portion; The first ear inlet can be engaged with the second ear inlet.

9. An earphone assembly, characterized in that, Includes a charging case and the earphones as described in any one of claims 1-8.

10. The headphone assembly according to claim 9, characterized in that, It also includes multiple backup batteries; The charging box has a battery compartment; The battery compartment can accommodate multiple of the spare batteries.

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