USB:USB2.0 Control mode: USB plug and play, button control Button function: mute, add or subtract sound Speaker: built-in high-fidelity, high-power speaker Voice processing: intelligent cancellation, noise reduction Support system: Android, XP, Windows7, 8, 10 USB interface: 2 interfaces, can be connected to the mouse and keyboard Transmission mode: USB transmission Applicable occasions: video meeting, multi-person video meeting, multi-party communication Colour: black Material: plastic Size: 234x210x48MM Package Contents: 6 * USB Conference Microphone Only the above package content, other products are not included. Note: Light reflection 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.