Product features:YSX - 290A video conference cameras to build industry cutting-edge work in the field of video meeting!USB video output, plug and play, light and portable, easy to operate;PTZ control protocol for VISCA, PELCO - P, PELCO - D, with a standard RS232485 control mode;, set up 255 preset level 355 degrees 120 degrees, up and down to rotate in a row, the IR remote control.Can be perfectly compatible with all kinds of video conference software and discuss on market terminal system and communication tools such as QQ, MSN, SKYPE for remote communication.