3.5"TFT LCD color video monitor, plastic case, with clear image and ... ; 3, PBX system for multi-appartment; 4, Wireless system;7435 CX/NCX descriptionFuction:1, Audio/video communication ... , 3.5'' TFT LCD color display;2, Intercom, inspection and Remote unlock;3 ... from distributor;Working Current: B/W<600 mA, Color< 400mAWiring: 4 Wires;Communication Duration: 45~90 secAmbient ...