1, Professional shockproof design on outside frame and covering
2, Encryption function & series numbers for fleets
3, Recording/displaying: D1 for each channel
4, Resolution: D1 at 100f/s, NTSC: D1, 704*480/PAL: D1, 704*576
5, H.264 video compression, AVI video format
6, Prolong recording for 1 hour after ignition
7, Support SD card 32GB max & external HDD 500GB max
8, GPS, speed/ignition sensors, over-speed alert supported
9, 32GB records for 33 hours with 4 channels, D1