... .DC6-36V power input 5.Support 2pcs 32GB SD card GPS 3G Wifi SD card 4ch car DVR ,4ch Mobile DVR,car ... 3G wireless transmission function, the various 3G standards, WCDMA, CDMA2000, TD-SCDMA ....or GPRS, EDGE, WiFi wireless transmission, optional features. • Real ... ).GPS ,G-sensor Support Module Built-inVideo Storage SD storage card Support for two SD cards, each with maximum support 32G, loop ...