This is a 4-channel car digital video recorder is featured with diversified recording modes, compact size, easy installation, shock resistance and stable performance. It is really a helpful companion for all car owners! Features: 1. H.264 compression mode, support 4CH real-time 1080P million pixels AHD input and analog standard definition camera input, or 2CH HD input + 2CH SD input. 2. Support 1080P full HD, 1080P/D1/CIF for optional.3. Support wide range of voltage input from 8V-36V, suitable for most vehicles. 4. Exclusive pre-allocate DVR special file system technology, solving repeatedly wipe cause file fragmentation, and ensure the integrity of the data. 5. By accidents power-off protection function. Unique UPS Technology ensures the integrality of record when power failure occurs, even can for 10-15s. 6. Flame out time-lapse video recording function. (Highest support long delay time 24 hours.) 7. Auto recording, time recording, alarming recording modes for different request. 8. Display vehicle traffic status, vehicle numbers, route, super-low speed vehicle information, convenient management. 9. Support G-sensor. 10. Support memory card remote software upgrade/OTA remote upgrade automatically, partition backup technology upgrade don't crash. Specifications: Operating Language: Chinese/English Video Compression: H.264 Video Input: 4CH port Video Output: 1CH port Video Standard: PAL, NTSC, CIF, HD1, D1, 1080P Resolution: 1080P/D1/CIF, Maximum: 4 channels of 1080P Audio Input: 4CH port Audio output: 2CH port Audio Compression: G.726 compression, 8KB/s speed Recording storage: Memory card (Not Included)Remote Controller Battery: 2 x AAA Battery (Not Inlcuded)G-Sensor: Support Power Input: 8-36V Power Output: 12V Working Temperature: -40 to +70 Working Humidity: 20% to 80% Size: 140 x 42 x 142mm/5.5" x 1.6" x 5.6" Package Weight: 585g Compatible: for most of vehicles Package Included: 1 x Mobile DVR 1 x Remote Controller 1 x Power Input Cable 1 x AV Output Cable 2 x Keys 1 x Instructions 1H.264 compression mode, support 4CH real?time 1080P million pixels AHD input and analog standard definition camera input, or 2CH HD input + 2CH SD input 2Support 1080P full HD, 1080P/D1/CIF for optional 3Support wide range of voltage input from 8V?36V, suitable for most vehicles 4Support HDD + SD card Data record storage (maximum support 2TB 2.5 5Exclusive pre?allocate DVR special file system technology, solving repeatedly wipe cause file fragmentation, and ensure the integrity of the data