1.Dual camera car dvr with GPS,G-sensor 2.2 cameras(120,170) 3.Night vision,AV out 4.Password for TF card 5.audio Dual camera car dvr with GPS ... micro SD card by software10.Have two format video file when we backup video files, one is sd format, it just can ... contain metal substances and have impact on GPS positioning.(c) IR starts according the environment lux situation (weather, windows film, etc ...