... RECEIVER FEATURES1,WIRELSS USB DVR2,4-channel 2.4ghz wireless video/audio Capture images 30 Frames per second Record file format aviand ... ,USB2.0 interface. Transmission rate up to 480MBIT/S5,Fluency video display, 720 x 576 image up to 30 frames/s6 ... image with true color saturation. 8,Contrast,Gamma Advanced Digital video control function 9,Support Window XP , VISTA32, WINDOWS 7 2 ...