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Color：
Business black
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Size：
63*63*211 mm；net weight：405g
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Connect：
USB 2.0（full speed)
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Power supply：
USB cable charging
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Audio Features：
360° intelligent voice pickup, intelligent digital audio processing, 256ms cancellation, intelligent dynamic noise reduction, automatic gain control, full duplex
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Functional features：
The I-21 is a USB-connected, microphone-speaker conferencing microphone for small video conferences of 6-10 people. It can also be used in personal business, home or leisure entertainment venues.
