GRAVITY GR-MC2020 4.3" Car Rear View Mirror Monitor for DVD/VCR/Car Reverse Camera W/ Compass & Temperature Function Universal Fit Feature: This rear view mirror monitor is designed for car rear view purpose, which can work with a reversing camera (NTSC or Pal) to show the real-time images behind your car, with good compatibility with multimedia parking sensor system behind the camera. With dual video input, it can be connected to a car DVD player too. When revering gear is engaged the rear view system automatically starts to work and when the monitor if power off, the mirror functinos just like a normal rear view mirrow as the monitor is hidden and almost invisible. OEM Replacement seyle with Bluetooth and compass function optional. Screen size: 4.3" | Display screen: TET-LCD | Display Resolution: 480h x 272v | Aspect Ratio: 16:9 | Power Consumption: DC12V | Video output: V1 to GPS/DVD, etc - V1 to Reverse Camera | Signal System: PAL/AUTO/NTSC