How to Use: 1. One key lock the file. When the camera is recording, long press UP key to open or close the file lock function. 2. For the lens type, short press the UP button to switch the front/rear camera. 3. Long press the OK key to turn on/off the car camera. 4. Press the down button to turn on/off the audio record. 5. Long press the menu key to turn on/off the screen saver. Package Includes: 1 x Full HD Car DVR 1 x Car Charger 1 x Mini USB Cable 1 x Suction Cup Mount 1 x User Manual Product Specification: Type DVR (Digital Video Recorder) LENS 3.0M 25mm big lens Display 4.0-inch 2.5D IPS HD screen Color Black Video AVI, Full HD 1080P 1920x1080 at 30fps, HD 720P 1280x720 at 30fps Codec M-JPEG Infrared Night Vision Yes Loop Record Yes Motion Detection Yes G-Sensor Yes OSD Language English, Russian, Chinese, etc. Storage MicroSD card (not included) 64GB Battery Rechargeable 180mAh li-ion battery Input/Output Mini USB port Cable Length 11ft (3.35m) Features Infrared Night Vision, loop record, Motion Detection, G-Sensor,1080P Memory Card(s) Supported TF USB/TF Card (Max Capacity) 64g Dimension 4.33x2.32x1.26in (110x59x32 mm) Net weight 3.8oz (108g)