Brand: AOSU Color: Black Features: See the Whole Picture in 2K Resolution: With 166wide viewing angle, 4:3 aspect ratio, you could see a person from head to toe or the package on the ground See the Whole Picture in 2K Resolution. No Subscription Required: aosu video doorbell support SD card , no monthly fee. Get Accurate Alerts with Smart Human Detection: Adopted latest AI algorithms to identify humans in the video, reducing false alarms caused by moving objects like animals . More Stable Signal: aosu video doorbell is equipped with a signal-enhanced base station repeater to maintain a more stable 2.4G Wi-Fi signal connection. Quick Reply Voice Changer: When a visitor rings the bell, you can answer/hang up the video call directly or select a preset quick voice reply, also can use voice changer to protect your privacy. EAN: 5059648201114 Listing and template services provided by inkFrog