Name: Rear view system Model: MS-701RS Suitable for car Including a 2.5” TFT LCD monitor, a color camera ,four sensors ,a control box. Through it we can see the thing in our back and the distance. They all be display in the LCD monitor picture alarm you the distance to the obstacles and direction automatic start when back up 4 sensors without invisible area sound alarm the distance the obstacles Technical Parameter: 2.5 inches TFT LCD display color : 262K pixel: 480x234 brightness:250nit contrast: 150:1 view angle:45/45/10/30(L/R/U/D) respond time: 30ms system: PAL or NTSC input power: DC10-15V power Consuption: about 5W operation temperature:- 30?~+70? Alarm distance:0.2-1.5m Alarm sound:?78dB