Specification: - Item Type: Driving Video Recorder - Color: Black, Cool black - Wide-angle Size: 120 Degree - Video Resolution: 1080P HD - Video Pixels: 3 mega-pixels - Support Memory Size: 8G-32G - Screen Size: 2.2 inch(8.76x4.73x3.50 cm) - Function: Night Vision Cam, Track Warning, Loop Recording, HD Output ? Steps loop recording 1.Turning on the loop recording in the menu. 2.Format the card in the camera before use. 3.Turn off the G-sensor due to the high sensitivity, ?it will save many videos which can't be cycle covered, so the card is filled full soon, then it stops the video. ? Kindly remind: 1.The CAR DVR can only be on CAR which is of The 12 v power. It may burn The motherboard if informs on carts of 24 v power. If you want to use It on carts, both please add a 24v 12v converter. 2.It would be better use with Kingston or Sandisk the original C10 high-speed card, before use please format or clear the card at DVR. 3.That battery is small, please charge it via car charger all the time when used. ? Important tips about SD card The car camera is HD1080P video recording, high requirements on The SD card. In order to guarantee The normal use of the car camera, you need a SD card from high literacy rate. The C10 high -speed card is it, and you must ensure that The SD card has good quality. If using low quality SD card, car camera may not work properly. Package Included: - 1 X Car DVR - 1 X Recorder Holder - 1 X Car Charger Power Cord