Screen:4.3 inch HD LCD Screen Support For Memory Cards:Support Max TF card 32GB (Suggest use C10 speed TF Card) Lens Material:6G-Glass Len Aperture:F2.0 Video and photos Video resolution: 1920 * 1080P ,1280 * 720P Video format: AVI Picture format: JPEG Angle Front Len angle: 170 degrees Rear Len angle: 120 degrees Main Function Rear view Double lens Loop recording Motion detection Microphone:Built-in Noise Cancellation of Microphone:Built-in Power Supply:12 / 24V input,5V / 1A output Packing specifications ​Single Len DVR Package Contents: 1* Package Box 1* Car dvr 1* Car charger 1* User manual Dual Lens DVR Package Contents: 1* Package Box 1* Car dvr 1* Rear lens with 5.5 meters cable 1* Car charger 1* User manual