3G mini DVS support GPS, SMS , alert, DVR WCDMA/HSPA smart design smallest 3G DVS in the world ... for video and photos embedded latitude and longitude. GPS backend server support.11DisplayBuilt-in 1.77 inch TFT color screen,support ... ,urgency calling,centre interphone,centre broadcast,unification command,unified client server remote monitor software.23Other datasheet Working time 4w for power ...