General description No matter where you are, answer your door with the Smart Video Ring Doorbell. This smart wireless remote video doorbell features 1080p HD daytime and infrared nighttime video, ensuring you can see who is at your door at any time. With a 65° viewing angle, it provides a reliable and practical solution for home security. Technical specifications Video resolution: 1080p HD Viewing angle: 65° Battery: Built-in 800mAh lithium-ion battery Charging time: 1.5 hours Standby duration: Normal use for more than 6 months Installation Easy to install and remove No need to punch holes; supports 3M adhesive stickers Also supports punching installation Usage Two-way intercom between doorbell and mobile phone Real-time mobile phone notifications Supports two-way calling, taking pictures, and recording Voice-changing function for privacy when dealing with strangers Controlled via a dedicated app with automatic working mode