Multi-flats Color Video Door Phone color TFT-LCD Handfree video door intercom Surveillance&unlocking IR night vision Multi-flats Color Video Door Phone Images: Feature:Indoor Unit (Interphone)1. 7 inch TFT-LCD, no radiation, low power, high-definition widescreen image.2. Hand-free Intercom, good talking quality, clear voice.3. Electronically controlled unlock function, remote release the door.4. ...