Features: Screen size: 7 inches Double TV system: PAL/NTSC Resolution: 480 x 234 x RGB (QVGA) Two video inputs: AV1 AV2 DVD/VCD back-view camera Auto switch to reversing picture Technical parameters: Operating voltage: DC 12V Operation current: 20mAh ~ 200mAh Sensor installation height: 45 ~ 60cm Detection distance: 0.3 ~ 2.0m Ultrasonic frequency: 40kHz Operating temperature: -10°C ~ +65°C Beep volume: 48dB Power consumption: 8W max Feature: 1.Video:Dual video inputsAV1 / AV2 / MP5 switchingWhen parkingimage can change V2 from V1 2.Black Screen:When no video signal inputback screen will display. 3.Display format:MPEG-1MPEG-2MPEG-4H264 XVID;RMRMVBDVDSVCDVCDDVCDDVIXFLVMPEG4VOBMKVAVIMP3. 4.FM Send:87.5MHZ-99MHz