Wireless rearview system with 3.5" TFT Foldable Square monitor 1. Auto parking sensor switches function: When reverse gear is engaged, the system swtiches from DVD/VCD video to rear view camera video automatically. When release the recerse gear, it automatically switch to DVD/VCD video. 2. DIY installation: Simple cinnects to power supplym, no need to go wiring in the car 3. 19dB strong Signal trasmission, high senstive receiving, clear image and working stable, parking safely Wireless receiver and transmitter: Transmission Frequency: 2.4GHZ Unobstructive effective range : Up to 100m Power Supply: DC9--12V Receiver: Receiving Sensitivity: </= 85dBm Power Supply: DC 12V Video Output: 1Vp-p@75 ohm Signal System: PAL/NTSC Operating Temperature: -10--+50 Celcius centigrade degrees Specification for rear view monitor: Type: Digital TFT LCD Display Size: 3.5inch Display Format: 4:3 Power: ≤3W Power Supply: DC12V Video: 2AV input cauto switch reversing System: PAL/NTSC auto switch Contrast: 350:1 Pixel:960×468 Installation: install on the dashboard, foldable Camera specifications Image sensor: 1/4 inch high definition color CMOS Optical lens: Anti-vibrate waterproof,high temperatures sustainable View angle: Horizonal 170degree,vertical 120degree Image control: Automatic exposure control, automatic white balance control AGC Video output : 1.0Vp-p/75(Ω) Function: With night vision, with built-in color active reversing warning line Sensitivity: +50dB Mini illumination: 0.2 Lumens Average power consumption:≤0.6W Operating Enviroment: Operating voltage: DC9V-16V Environment hunidity: 10-90 percent Operating temperature: -20-+60 degree Storage temperature: -40-+85 degree