As a high tech company from China, We professional product Vehicle tracker(Mobile DVR) over 8years, at same time, we supply Playback software for you. Vehicle tracker adopts H.264 video compression and SD card/HDD storage to made sure a good video quality and work in harsh environment. Vehicle tracker support send 4CH vehicle video realtime by GPRS/CDMA/EDGE/3G wireless module to distance control center. You can see vehicle video and gps information live time. We have two kinds of model: SD3G-T600, 4CH, built-in GPS+GPRS/CDMA/EDGE/3G+WiFi,Max32G SD card for recording. HDD3G-F600, 4CH, built-in GPS+GPRS/CDMA/EDGE/3G+WiFi,Max 500G HDD for recording. GPS/3G DVR Vehicle Tracker- SD3G T600 4ch *4 Channels video input and 2 channels video output(CIF,HD1,D1) *Built-in GPS,Built-in GPRS/CDMA/EDGE/3G/,Built-in WiFi *Plug-and-play from SD recorded Max32G(1ch/CIF3.5hours=1G), easy to playback in PC side *RJ45 Port + USB Port , RS232 + RS485 Port *H.264 Wireless Transfer, provides superior video transfer quality(up to 7-8 fps based on 60 Kbps) *Dual streaming transfer provides the excellent performance *Support powerful CMS (Central Monitoring System ) for superior online viewing / tracking *Stand alone NON-PC embedded operating system (RTOS) provides maximum stability, 1-25 fps adjustable *8V-36V Carton