1.PIR Motion Detection and 2-Way Talk:This apartment door bell camera has a built-in PIR sensor, you'll receive instant message on your phone when someone presses the home doorbell or detects motion. The wireless doorbell camera built-in microphone and speaker, so you can see and talk directly to visitors while answering the call. 2.IR Night Vision and IP54 Weatherproof:The smart doorbell equipped with IR sensor and LED, Day and night mode can automatically switch. No matter it is day or night, the image and video can be clearly. The wireless camera doorbell designed with high-quality material cover, it works fine in rainy weather. 3.120° Wide Angle:The doorbell have 120° Wide viewing angle lets you not miss any visitor. 4.Rechargeable Battery and Chime Included:This wireless ring doorbell comes with 3 rechargeable batteries and a wireless chime. The battery will last video door bell device for about 1-2 months. And this battery doorbell kits supports charging with USB cable, no need to replace the battery, which is very environmentally friendly. The Camera Door bell is equipped with Chime, you will never miss the sound when the front doorbell rings. 5.Wireless Wi-Fi Connection and Easy Installation: Door bell supports 2.4 GHz Connection ( 5GHz not supported), which gets rid of network cable connection, more smart and convenient., Manufacturer: CFWWSAQ