This wireless mirror car dvr with one wired camera on mirror and one wireless camera can install at the back of your car.One button change wired cam to wireless cam when u back your car.Two model wireless camera can be optional Support Max.32GB SD card,upto 30 hours continuous record. D1 hight resolution design.Manual record and motion detect record can be optional.Prerecord upto 20s whole even shows without reservation1.Support Max.32GB SD card * ‘Car DVR’ protected flash memory with extendable SD card slot. (approximately 30hrs)2.Display: 3.6 inch TFT LCD 920*240 pixel, 262,000 color3.Video recording: M-JPGS SP with stereo sound, optimized resolution up to 640x480 @ NTSC:30f/s. PAL:25f/s. in AVI format.4.Video playback: M-JPGS SP with B-Frames with stereo sound. Near DVD quality up to 720x480 @ 30f/s, AVI file format.5.Speaker: Built-in speaker.6.Interfaces: USB 2.0 high-speed device, compatible USB 1.1, PC & Mac.7.Power source: Internal: Rechargeable Lithium-Ion Battery.8.External: Car USB charger.9.Camera: Rotating Camera up to 330 degree.10Recording Mode: Manual A/V Recording; Motion Recording,Pre-recording.1.Power ON/OFF (Press and hold for 3 seconds to turn on/off)2.USB/charging socket3.SD socket4.OK (menu/Enter)5.ESC (REC/PLAY,PAUSH/Exit)6.Cursor Control:UP/Zoomout7.Cursor Control: RIGHT/Zoom in8.3.6inch LCD9.Camera10.work led11.charge led12.mic13.spker14 F/B swinch15.Reset keyCameraImage Sensor HDR 1/4 Digital CMOS Horizontal Resolution 420TV Line Total Pixel Array 648 x 488 Frame Rate 60fields/sec ReceiverDimension 280x125x 75 mm Weight 1.50 kg Screen 3.6’’ TFT LCD USB USB2.0 Built-in Li-battery Rechargeable Memory 32G with SD Card Slot Video format AVI Video resolution 720*480@ 30fps;320x240@ 30fps Frame rate 30fps-NTSC; 25fps-PAL TV output 1.0V PP Temperature -10-50C Menu language English