... 3G (EVDO, WCDMA,HSPA, HSDPA, TD-SCDMA…), GPRS…optional.l Real time recording, 100f/s (PAL), 120f/s (NTSC). maximum support 2CH ... 3G EVDO, HSPA, HSDPA, WCDMA…GPRS, EDGEPlaybackSystemVideo SearchSearch video via time, type(normal or alarm),PlaybackSupport 1 or synchronous 4 channels ...