3g gps tracker, 3G phone gps tracker, 3G video camera.3G video surveillance Featuresl 1 use USIM card, support WCDMA ... network.l 2 use video ropes to connect CCD simulated camera externally.l 3, support SMS/GPRS/ HSDPA/Internet data transportation ... , location, real-time control,monitor,video record, urgent alarm and tracking servicel 10,mainly used in monitoring and locating the ship ...