Multiple connection modes: USB, Bluetooth, receiver drive free connection, plug and play without driver installation. : built in large capacity lithium battery 3000mAh, super can be 8-12 continuous work, USB charging can also be used. Strong compatibility: it can use 7 / 8 / 10, OS, And-roid, Linux and other operating systems, and support zoom, Skype, WebEx and other software. Application scenarios: video conference, online education, consultation, political cloud video, collaborative office, judicial scheduling, etc. G95 video conference omnidirectional microphone built-in high-power high-fidelity speakers, audio Chip, using advanced cancellation algorithm, voice automatic gain balance (ALC) function, 360 degree omnidirectional high-sensitivity digital microphone, suitable for video conferences and instant messaging Communication software, plug and play, simple and efficient. Bluetooth: BT5.0 Function: noise reduction / cancellation / AGC : 64.3 dB (a) Connection mode: wireless / USB 2.0 connection Colour:black Material:plastic Size:181 x 81 x 29mm Package Contents: 1 x Conference Microphone 1 x USB Cable 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.