~ 2.4GHz WIRELESS USB RECEIVER FEATURES1,WIRELSS USB DVR2,4-channel 2.4ghz wireless video/audio Capture images 30 Frames per second Record file ... /s6,Moving image dispaly up to 1440 x 11527,Sharp and Nature image with true color saturation. 8,Contrast,Gamma Advanced ... video control function 9,Support Window XP , VISTA32, WINDOWS 7 2.4G WIRELSS USB DVR