1.Easy cap with 4 channel 2.Video Audio capture 3.USB 2.0 for MAC,XP,SEVEN,VISTA... ... , and 30 fps under NTSC format Per channel.1 channel audio input.Surveillance Software Feature:4 screen display modes are available ... on laptop PC screen through this USB video adapter Video & audio recordingSupport multiple video inputs of Composite RCA Video Turning your ...