The ieGeek wireless video doorbell combines 2K HD resolution with a 166 wide-angle lens and infrared night vision for clear, round-the-clock visibility of your doorstep. Designed for fast and easy wireless installation, it connects via 2.4GHz Wi-Fi and is powered by a 5600mAh rechargeable battery that lasts up to two months on moderate use. With adjustable mounting angles using the included corner bracket, it adapts to various entryways, allowing you to view parcels on the ground while staying connected to visitors through smart two-way audio from anywhere via the app. iegeek Adjustable 2K Wireless Doorbell with PIR Motion Camera & Voice Changer in Black