1Installed with 166 degree wide angle lens, provides a clear wide view outside the door. 2No wires or cables, ultra-low-power technology and up to six months of standby time. 3Detect the slightest movement in front of the door. Low, medium and high sensitivity for your choice. 4Equipped with infrared sensors and LED, day or night, the camera can automatically switch lights to ensure your view is clear. 5You can easily connect to your home wi-fi network and send real-time video to your phone. You can watch video anytime and anywhere by mobile phone. 61080P noiseless real-time two-way call: with clear 1080P full hd resolution, support for iOS and for android-compatible apps. 7The doorbell camera's 1080p resolution and WDR feature ensure optimal resolution , IP65 waterproof weatherproof, outdoor use is not affected by the weather. 8Six phones monitor and share images of doorbells at the same time, but only one user can make a call directly on the intercom. Compatible for iOS and for Android operating systems. 9we send the item with a wireless ding dong doorbell , more convenient to use.