Features: Press the monitor button to see the outside machine, then press the intercom button to talk to the outdoor person. The indoor unit has the function of unlocking (this doorbell does not include the lock). Hands-free intercom, 5 user cards are already equipped to unlock directly. Outdoor unit built-in receiver, remote control can be directly unlocked. 4 kinds of unlocking methods, card, remote control, password and unlocking of indoor unit. Ultra-thin design leads the new trend of color video doorbell, showing luxurious style. Waterproof, anti-oxidation and wear-resistant, with rain cover, support for embedded installation and mounting. Both the indoor unit and the outdoor unit adopt touch technology, and the touch has voice prompts. High sensitivity, no radiation, low power consumption, high definition 7 inch color image. With monitoring, calling, card, hands-free, indoor intercom. Support 500 ID user cards, wireless remote unlocking range of 5 to 10 meters. Ringer volume, image brightness, chromaticity can be adjusted. Specification: Condition: Brand New Color: Shown as Picture Optional Plug: AU Plug, UK Plug, EU Plug, US Plug Material: ABS+PMMA Panel Power Supply: AC110V-240V --50Hz DC15V 1.2A Current: < 800mA Call Delay Time: 120S ± 10% Monitoring Delay Time: 60S ± 10% Camera Sensor: 700 Lens: 3.6MM 92° Package List: 1 x Outdoor Unit 3 x Indoor Units 4 x Power Supplies 3 x 5 M 6-Core Wires 3 x Patch Cord Connectors 3 x Pack Screws 1 x Manual 5 x ID Cards 1 x Remote Control (Include One 12V23A Battery) 6 x 6-Core Port Line