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Fan rotating speed control method and device and head-mounted equipment
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Display system and head-mounted display equipment
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Volume correction method and device, audio playing device and readable storage medium
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Automatic laser etching device
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Pre-folding mechanism and earplug type earphone assembling tool
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Microphone accomodates structure and has headphone of this microphone
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Welding fixture for lithium ion battery circuit breaker
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Box structure of opening and closing cover
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kinds of wireless earphone
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A kind of wearable device and its acoustic seal structure
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Intelligent glasses
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game control device
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Wrist-worn device
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Wireless headset, earphone charging box and communication means, system, computer media
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Pleasant structural recognition method, sound quality adjusting method and the earphone of earphone
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Camera expansion regulating mechanism and helmet
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Camera expansion regulating mechanism and helmet
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A kind of intelligent glasses and its display lens attachment
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