... DVS support GPS, SMS , alert, DVR WCDMA/HSPA smart design Wireless Body Worn Camera 3G mini DVSSpecification1.3G video & audio ... .16Wireless controlBuilt in wireless control,suport separate wireless remote control for the record and photo,urgency key-press 17LED One ... .22Business funtioncOpening /close for the record by one key,take photo,urgency calling,centre interphone,centre broadcast,unification ...