4K UHD Video Conference Camera -- VIZOLINK V20 USB webcam is equipped with an 8-megapixel CMOS sensor and premium ultra HD image signal processor to deliver 4K UHD video streaming at 25 frames per second. True image restoration and rich details, perfect for video conferencing, live streaming, online teaching, gaming. 3W Speaker & 4 Noise-canceling Mics -- With 4 omnidirectional Noise-cancellation microphones, 3W speakers and upgraded beamforming algorithm, V20 computer camera can automatically filter out background noise and echo, keyboard typing and other environmental noises, which delivers a loud and clear voice (pick up within the distance up to 8m/26ft). Drectly supports two way audio, no external speaker. Remote Control & EPTZ Function -- V20 PC web camera supports remote control. You can adjust the video footage according to the number of people and the environment with PTZ funtion. And you can easily customize your field of view with 8X digital zoom via the remote w