Feature:1. 7 Inch Color Screen: With 800 x 480P resolution, the indoor screen clearly display outdoor image and easy control of answering the phone, opening the door, monitoring functions, support 13 meters distance infrared night vision.2. Two Way Calls and Remote Unlock: Doorbell system allows you to see, hear, and speak with visitors when they press the outdoor camera button. The device also supports the connection to an electronic lock, enabling remotely control the unlocking of indoor units.3. Stable Signal: The wired video intercom system has a stable wireless signal, strong penetration, eliminating the need for network cables or concerns about signal delays.4. Waterproof Outdoor Unit: The weather resistant outdoor unit with a rainproof cover is oxidation and wear resistant, ensuring optimal performance in any weather.5. Widely Used: Video intercom system with a stylish appearance, is suitable for apartments, villas, hotels, offices, public buildings, can decorate your house, office, company, etcSpecification:Item Type: Wired Video Intercom System Material: ABSIndoor ScreenPower Supply: AC100-240V 50/60/DC15V 1.2A Screen: 7 inch Digital ScreenResolution: 800*480Installation: Wall mountedCall Delay: 120s+10sMonitoring Delay: 60s+10sPower Consumption: Standby 0.5W / Working 8WConnection: Four wire, Five core wire with ExtensionOutdoor DoorbellPower Supply: Provided by the Indoor UnitLens: 3.6mm92Resolution: 700 TVLInstallation: Wall mountedInfrared LED: 4-5pcsInfrared Sensing: Light SensorPower Consumption: Standby 0.5W / Working 12WConnection: Four wire.Package List:1 x Indoor Display Screen1 x Outdoor Doorbell2 x 4P Flat Cable1 x 2P Flat Cable1 x 4P Cable (White)8 x Expansion Screw8 x Silver Screws1 x Black Screw1 x Adapter1 x User Manual