Features: Screen size: 7 inches Double TV system: PAL/NTSC Resolution: 1,440 x 234 x RGB (QVGA) Three video inputs: AV1, AV2, DVD/VCD, back-view camera Auto switch to reversing picture Special optical lens with anti-glare function and broad vision Connectable to parking sensor systems, able to realize a perfect combination of sound, image, direction telemeter and digital telemeter Technical parameters: Operating voltage: 12V DC (24V available) 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.