... DVR, 3G Portable DVR, 3G Portable camera,3G,GPS camera,3G Alarm camera,Portable Video Recorder PC200, ( ... , 3G wireless communication modules, GPS modules, embedded battery power supply, wire-controlled earphone, small camera and MIC. Adopting standard ... battery power supply, easy for charging and carrying Supporting GPS, optional.Supporting 3G wireless transmission functions, various 3G standards ...