MDVR 7104 4 Channel DVR, 3g & GPS enabled With Dual 128Gb SD Cards

High-performance Dual SD card mobile DVR
Supports 4CH audio & video
Built in G-sensor for instant recording before and after impact
3G/4G, WIFI, GPS is optional for Live View and Tracking
8 - 36 volts supply rail
H264 video compression
Linux Operating system
Full metal housing for robust impact resistance.