Regardless of travel, work, business trip, and other traffic lights, you can turn on the monitoring doorbell to understand all the dynamics at the door. Even if you are away from home, you can actively wake up the monitoring anytime and anywhere, and master the front dynamics with one hand, so that you will never miss any pictures. Features: Name: Video doorbell APP: TUYA Pixel: 2 million (dpi) Type: wireless camera Style: video doorbell Image sensor: COMS Horizontal resolution: 1080 (TVL) Minimum illumination: 0.01 (Lux) Resolution: 1920*1080 Lens: 1.44 (mm) Signal-to-noise ratio>: 48 (db) Backlight compensation: automatic Power supply voltage: 5 (V) Weight: 0.4 Alarm function: PIR induction Material: ABS Use environment: outdoor, doorway Effective distance: 8-10 meters Surveillance camera lens: 1.44mm Lens focal length: 1.44mm PTZ control: not supported Computer monitoring: not supported Irradiation distance of infrared lamp: 8-10 meters Power supply: Lithium battery power supply (not included)