Headphone sound control device (HM-140)

CN309702588SActive Publication Date: 2025-12-26刘朝城
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Patent Information

Application Number
CN202530243063.9
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2025-12-26
Estimated Expiration
2040-04-30

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Abstract

1. The name of the design product: earphone sound control device (HM-140). 2. The use of the design product: a device for controlling the volume of Bluetooth earphones and other functions. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
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