Ultra-thin design indoor unit, fashionable and luxury. Touch button design 7" TFT LCD screen with no radiation, low power consumption and high definition IR Camera with night vision Electric lock-control function Hand-free intercom function Mute indoor intercom function Monitoring the outside of the door 16 kinds of doorbell rings Volume, brightness and contrast adjustable The camera could be high definition Monitor, intercom, unlock, wireless control, password unlock, hand free, monitor talks to monitor Support 500 ID cards Wireless unlocks distance: 5-10m Suitable most of the electronics lock, with delay unlocks functions Easy installation by yourself with adapter and cable we provided in this kit Specifications: Screen: 7" TFT Resolution: 960 * 480 Camera: 1/4" HD color CMOS can reach 700 line Camera lens: 3.6mm Camera viewing angle: 92 degrees Call duration time: 120 Seconds Monitor duration time: 60 Seconds Power consumption: Static state <0.5W, calling <10W Power input: AC 100V-240V 50/60 Hz Power output: DC15V Indoor monitor: 225* 128 * 23mm Outdoor camera: 168*110 *65mm Note: Does not include built-in rechargeable battery or memory card.