Features: Indoor Unit: 7inch capacitive touch screen indoor unit, fully presenting beautiful and luxurious style, no radiation, low power consumption, can provide high definition widescreen images. Equipped with hands-free intercom function, electrically controlled unlock function, monitoring function. The image brightness, chroma, ringtone volume and intercom volume of the indoor unit are adjustable. 16 kinds of music ringtones are ready for you, eliminating your annoyance of always hearing monotonous doorbells. Outdoor Unit: The outdoor unit with anti-oxidation aluminum panel which goes through wear-resistant surface treatment has HD 700 TV lines camera to guarantee no color cast. Super rainproof, IP55 waterproof level, blue button display, with IR night vision function, wall-mounted installation is simple and convenient. Power-on unlock and power-off unlock, support to set 3s-30s optional delay unlock, can be connected to exit switch. Password/fingerprint/remote control unlock function, you can enter and save 500 groups passwords, 1000 groups of fingerprints, and 500 remote control. NO Lock: NO lock can be directly connected to the outdoor unit with a power supply so that the lock is able to operate without an additional power supply, and its installation is simple and convenient. Specification: Doorbell: Material: ABS + PMMA Optional Plug Type: AU Plug, UK Plug, EU Plug, US Plug Switch Power Supply: AC110V-240V--50Hz DC15V1.2A Whole Unit Current: < 800mA Call Delay Time: 120S10% Monitoring Delay Time: 60S10% Ringtones: 16 ringtones Camera Sensor: 700 TV lines Lens: 3.6mm 92 IR Night Vision: Support Waterproof: IP55 Indoor Unit Size: Approx.225*128*33mm/8.9*5*1.3in Outdoor Unit Size: Approx.155*100*55mm/6.1*3.9*2.2in NO Lock: Voltage: DC12V Current: 200mA Holding Force: 500kg/1102lb Fault protection, NO mode (locked when not supplied with power) Use 2-wire non-polarized connection to access control or export equipment Signal Output: No Package List: 1 * Outdoor Unit 2 * Indoor Unit 2 * 15V/2A Power Supply 2 * 5m 4-core Connection Cable 1 * User Manual 1 * Remote Control (Built-in 1 23A 12V battery) 1 * NO Electric Strike Lock (With a user manual) Package List 17inch capacitive touch screen indoor unit, fully presenting beautiful and luxurious style, no radiation, low power consumption, can provide high definition widescreen images. 2Equipped with hands-free intercom function, electrically controlled unlock function, monitoring function. 3The outdoor unit with anti-oxidation aluminum panel which goes through wear-resistant surface treatment has HD 700 TV lines camera to guarantee no color cast. 4Super rainproof, IP55 waterproof level, blue button display, with IR night vision function, wall-mounted installation is simple and convenient. 5Password/fingerprint/remote control unlock function, you can enter and save 500 groups passwords, 1000 groups of fingerprints, and 500 remote control.