... smallest pack in the world 2.the stand-alone relay server 3G 4 channel H.264 DVS network video serveris the unique ... : 1 channel RS485, support Pan/Tilt/ Zoom( Pelco-D,Pelco-P)Front panel : LED, Keyboard, record, network, Emergency buttonBoard : WCDMA,CDMA ... GPS modules, plug and play with 3G SIM card, Relay Server will automatically connect according the unique preset DVS name Power ...