4-wire multifunctional WiFi video doorbell system 1024-600 Pixel HD touch screen, Friendly OSD Ul interface, Motion sensor, easy visual operation. It adopts aluminum alloy explosion-proof material, which is long-term and durable, easy to install, and beautiful and generous. 7-element low-distortion prime lens set 1080P HD sensor with auto exposure, auto white balance, and low-light reinforcement Maintain fine image quality at all times. IP65 waterproof and working temperature -40°C~+60°C and shareable with 5 users