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Color：
carbon rock gray
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Size：
Diameter: 120mm Height: 39.5mm, Net weight: 252g
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Connect：
USB 2.0 (compatible with USB 1.1), Bluetooth communication 10m (barrier-free)
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Power supply：
USB Bus power supply (5V500mA); Built-in lithium battery (2000mA)
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Audio Features：
360° intelligent sound pickup, 384ms cancellation, intelligent dynamic noise reduction, automatic gain control, full duplex
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Functional features：
BT-31 Bluetooth omnidirectional microphone is a portable microphone conference speaker based on USB Bluetooth connection, connected to computer through USB data cable or matched smart mobile device through Bluetooth, supporting network instant messaging software audio input output. It is suitable for small meetings, can also be used normally in high-end family business or leisure entertainment venues.
