Feature: Specification: This wired video intercom system comes with a 7-inch display video doorbell camera, night vision, and mobile TUYA monitoring and unlocking. It is suitable for villas, homes, offices, and apartments, and is easy to install. Features: Video doorbell camera for real-time monitoring of the front door. Night vision function for nighttime safety. Three unlocking methods for convenience. 7-inch display screen for clear visitor display. Suitable for villas, homes, offices, and apartments, widely used. Specifications: Camera Camera Lens: 1/4 High Clear CMOS Resolution: 800 line llumination: 0.02 LUX Light source: 6pcsIR LED Power supply: From monitor Size: 119x147x31mm / 4.7*5.8*1.2in Power supply Input: AC 110--240V 50/ 60Hz Output: DC 15V/2A Size: 45x80x52mm / 1.8*3.1*2in 7 Inch Monitor Screen Resolution: 800x480 Power: DC15V/2A Video input: 1Vp-P 75 Ohm Ring music: 16X4 melody Display time: Intercom 60s and monitor 30s Power consumption: Standby 0.2W and working 8W Connection: 4 wires Size: 229x164x33mm / 9*6.5*1.3in Package weight: 1400g / 49.4oz (1 Receiver 1 doorbell) 1800g / 63.5oz (1 Receiver 2 doorbell) Package list: 1* Outdoor unit 2* Indoor units 4* Wires 2* Power supplies 2* Mounting plates 1* Screw package 1* User manual Package List: 1* Outdoor unit 2* Indoor units 4* Wires 2* Power supplies 2* Mounting plates 1* Screw package 1* User manual