Product: Video door phone 7" LCD screen (2*indoor monitor 1*outdoor camera) Feature: Hands-free communication function. Electronic control lock function. Indoor intercom function. The brightness, color and volume of the indoor phone can be adjusted. The outdoor station is exquisite and durable; it has infrared night vision function. The usable distance of the connection cable is 200M; 4X0.75MM square meter guide line can be used. It will not affect the screen and intercom displaying. Specifications: Indoor monitor: Screen size: 7". (16:9 screen) Resolution:Digital: 800*(RGB) *480Viewing angle : up 50 degrees, down 70 degrees, left or right 70 degreesBrightness :200cd/? Ringtones: TonepolyphonicSensitivity : 56dbSignal format : PAL/NTSC (optional )Total power consumption: = 6W (400mA) Standby power consumption :