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Contact type electric connection structure of combined microphone
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Portable microphone combined connecting structure
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Air tightness detection circuit
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Remote control intermediate transfer control circuit
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Power control circuit of switching power supply
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Automatic charging and discharging detection circuit applied to high-battery-voltage sound box
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Anti-interference method for digital-analog hybrid circuit
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A kind of wireless charging speaker mobile phone support construction
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A kind of anti-impulse disturbances circuit of touch key-press
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A kind of multi-faceted wireless charging speaker
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A kind of Bluetooth audio device and its bluetooth anti static device
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A kind of stereo set and its audio signal transmission circuit
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A kind of power amplifier and its muting control circuit
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