Technical Parameters Car TV Receiving Box Receiving Frequency : 48.25MHz - 855.25MHz SIgnal Level : >78dBm Video System: PAL NTSC SECAM Support OSD teletext IR Remote Control With four antenna jack 1 way AV input 2 ways AV output Impedance : 75ohm Output Voltage : 1Vp-p Audio output : >0.6V AV input cauto switch when reversing Power : DC7.5-16V