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Color：
black
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Size：
135*135*37mm；net weight：332g
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Connect：
USB data cable connection/Bluetooth connection distance 10m
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Battery capacity：
3000mAh，Built-in lithium battery
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Audio characteristics：
360° intelligent sound pickup, 384ms cancellation, intelligent dynamic noise reduction, automatic gain control, full duplex
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Functional features：
BT-39 can be freely switched between USB Bluetooth connections. It can be connected to a mobile phone or used with a Bluetooth receiver. It can collect play sounds at the same time. The built-in 4 omnidirectional microphones have a 360° omnidirectional sound pickup radius of up to 3-5 meters.
