... ,2.4GHz hopping frequency,120-200M remote range,OEM video doorbell,color video door phone,video intercom system,3.5" indoor ... record function when nobody answers the call;Built-in 16 doorbell chimes for option;Intercom Function,clear talk quality;Calling out ... functions;Camera Resolution:320*240 pixels;Power Supply: DC 12V,5A(Transmitter Outdoor); DC 12V,2A(Receiver Indoor)Date/Time/Signal/Removable ...