Wireless receiver frequency 8channles2.4G&5.8GHz Built-in head tracking system Imaging device:high definition CMOS Packaging including:2.4 ... /5.8G transmitter,video goggle,camera with pantilt GS920 wireless ... inches photo4.wireless receiver, frequency 8channles2.4G&5.8GHz 5.antenna connector:SMA 50 ohm6.built-in head tracking system 7. ...