... WCDMA, CDMA2000, TD-SCDMA, GPRS, EDGE, WiFi wireless transmission (support WiFi automatic download and resume from break point) are ... , WCDMA, EVDO, HSPA,TD-CDMA; support built-in WiFi,(GPRS, EDGE customizing).GPS ,G-sensorbuilt-in G-sensor, ... File SystemASF / FAT32Video playbackVideo searchSearch video via time, type(normal or alarm), target SD cardPlaybackMax support 4ch synchronization playback, ...