... functionFeatures:Built-in 3.5" TFT monitor, rearview with camera,auto start working while car backward Built ... reverse gear Specifications TFT Resolution: 320x240 Power Supply: DC 9-15V Power Consumption: 4W FM Transmitter Range: ... 3 seconds to open the DVR video on mirror,press"PLAY"button 3 seconds again to ... When DVR power on,the time will be set and shown on display Hot sale Rearview mirror with 3. ...