1、Both indoor monitor and outdoor camera are composed of anti-oxidation acrylic plate and wear-resistant ABS housing.HD 700 TV lines camera, aluminum panel, with 3.6MM lens featuring 92° viewing angle and IR night vision function. 2、The outdoor camera supporting optional power-on unlocking and power-off unlocking possesses door unlocking function, IP55 waterproof rating. 3、The indoor monitor is equipped with hands-free intercom function, monitoring function and remote unlock function. 4、7-inch TFT LCD indoor monitor which has no radiation, low power consumption can provide high definition widescreen images. 5、The image brightness, chroma and volume of the indoor monitor can be adjusted. 16 kinds of music ringtones are ready for you, eliminating your annoyance of always hearing monotonous doorbells. Features: HD 700 TV lines camera, aluminum panel, with 3.6MM lens featuring 92° viewing angle and IR night vision function. 7-inch TFT LCD indoor monitor which has no radiation, low power consumption can provide high definition widescreen images. The indoor monitor is equipped with hands-free intercom function, monitoring function and remote unlock function. The image brightness, chroma, volume of the indoor monitor can be adjusted. 16 kinds of music ringtones are ready for you, eliminating your annoyance of always hearing monotonous doorbells. Functions: Outdoor call intercom: press the outdoor dingdong button to talk to the indoor person. Indoor call intercom: press the monitor button to see the outdoor unit, then press the intercom button to talk to the outdoor person. Monitoring: once press the monitor button, the indoor unit can see the situation of the outside unit. Unlocking: the indoor unit has the function of unlocking. Hands-free: hands-free intercom function. Specification: Condition: Brand New Whole Kit Current: <800mA Indoor Monitor: Screen: 7" TFT LCD screen Call Delay Time: 120S±10% Monitoring Delay Time: 60S±10% Music Ringtones: 16 ringtones Indoor Monitor Size: Approx.180*120*18mm/7.1*4.7*0.7in Installation Method: Wall-mounted Wiring: 4-core cable Power Supply: 50Hz DC15V 1.2A Outdoor Camera: Material: Aluminum panel Camera Sensor: 700 TV lines Lens: 3.6mm, 92° IR Night Vision: Support Waterproof: IP55 Outdoor Camera Size: Approx.138*98*40mm/5.4*3.9*1.6in Installation Method: Wall-mounted Wiring: 4-core cable Package List: 2 * Indoor Monitor 1 * Outdoor Camera 2 * Power Source 2 * 5m 4-core Connection Cable 1 * User Manual Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.