1、7-inch TFT LCD screen, no radiation, low power, high definition widescreen image 2、Hands-free intercom function.Electronically controlled unlocking function.Monitoring outdoor function 3、Ultra-thin aluminum panel design, blue light button, beautiful and luxurious 4、16 kinds of chord sounds are optional, and you won't always hear monotonous doorbells 5、Password/fingerprint/remote control unlock function The doorbell kit has two indoor units, one outdoor unit, one remote control and one NO lock, the outdoor unit has a password and fingerprint unlock function, and the indoor unit also has an unlock function. Features: Indoor Unit 7-inch TFT LCD screen, no radiation, low power, high definition widescreen image Hands-free intercom function Electronically controlled unlocking function Monitoring outdoor function Ultra-thin aluminum panel design, blue light button, beautiful and luxurious Volume, brightness and contrast are adjustable Outdoor Unit Outdoor unit shell made of anti-oxidation aluminum panel with wear-resistant surface treatment Super rainproof, IP55 waterproof.Blue light button Infrared night vision function, wall mounted installation is simple and convenient Power-on unlock and power-off unlock Can be connected to exit switch and set to delay unlocking Password/fingerprint/remote control unlock function Specification: Condition: 100% Brand New Material: Metal + PMMA + ABS Color: As picture shown Indoor Unit Size: approx. 235*165*30mm/9.2*6.5*1.2in Outdoor Unit Size: approx. 155*100*55mm/6.1*3.9*2.1in Doorbell Switch power supply: AC110V-240V 50Hz DC15V 1.2A Current: less than 800mA Call delay time: 120S ± 10% Monitoring delay time: 60S ± 10% Camera sensor: 700 lines Lens: 3.6MM 92° Outdoor unit with infrared night vision NO Lock Current: 200mA Keep: 500kg/1102lb Fault protection, no mode (locked when power is off) Use a 2-wire nonpolar connection to access control or export equipment Signal output: no Package List: 2 * Indoor Unit 1 * Outdoor Unit 1 * User Manual 2 * 5 Meter Connecting Line 3 * Power Adapter 1 * Remote Control (Built in 1 * button battery) 1 * NO Lock (With 1 * User Manual, 1 * Pack of Screw)