Features: Highly definition video doorbell with enhanced features that let you see, hear, and speak to anyone from your phone, tablet, or PC. video doorbell camera has night visions, and up to 10m/32.8ft,which is as clear and sharply as expect it to be and is as great at night even in low-light circumstances as need it to be. Receive mobile notifications when anyone presses your doorbell or triggering your built-in human motion sensors. Wireless doorbell camera images and video capture are clear and with Highly definition good resolution. Easy installation, no wiring required. Powered by 3pcs 18650 battery (not included), it can last for about 6-10months. Easy to use. Specifications: Material: Aluminum alloy Color: Silver/Black Size: Approx. 150x75x33mm/5.90x2.95x1.30inch Power supply mode: 18650 battery (not included) Power supply voltage: 3.7V Power consumption: 0.04W Standby current: 120μA Working current: 170MA Package Includes: 1set Video Door Bells note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.