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Necklet-type bluetooth earphone
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A kind of all-metal foldable structure and the headband receiver with the structure
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A kind of elastic foldable structure and the headphone with the structure
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Earphone
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Head-mounted noise-cancelling headphone
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Loudspeaker and headset
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A kind of bluetooth procedures guard method and device
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A kind of method for protecting hearing ability and device
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Reminding method and apparatus
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Speaker box external charge current detection circuit and speaker box
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A kind of audio frequency ground isolating difference circuit and audio amplifier
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Power control circuit based on soundbox output
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Earphone attachment structure and headband receiver
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Headset connecting structure and headset
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Earphone attachment structure and headband receiver
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Earphone attachment structure and headband receiver
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Earphone attachment structure and headband receiver
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Earphone attachment structure and headband receiver
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