T&J World Rearview Mirror DVR with Double lens Dual Swivel Camera and 3.5 Inch LCD Screen * 3.5" HD TFT Screen ;;Sensor: 1/4 color CMOS;Cycled recording: Yes Memory: SD card up to 32GB (not included)';Video Format: AVI Battery: Built-in 600mAh lithium polymer battery or car charger; Dimensions: 280mm x 95mm x 50mm (L x W x D, without bracket);Ports/Slots: TV Out/Mini USB/DV 5V IN/SD Card Slot