The Alarm.com ADC-VDB780B is a wireless, battery-powered video doorbell. This doorbell has HD video, two-way audio, a wide viewing angle, and a rechargeable battery.

Spec Sheet

Specifications:

Device Type: Wireless Video Doorbell Camera
Compatibility: Each ADC-VDB780B counts as one camera when used with a full video plan. A single doorbell option with Video Analytics is available for otherwise non-video customers.
Video Resolution: 1920x1080 Full HD
Field of View (FoV): 160° horizontal, 90° vertical, 175° diagonal
Image Sensor: 2.12 MP - 1080p, Sony IMX323 ABR control support and MJPEG
IR Night Vision: Yes, Range is 15 Feet (500cm)
Low-Light Sensitivity: 0.5 lux with IR LED off
Image Adjustments: Flip, Brightness, Contrast, Saturation, Sharpness, Exposure
Recording Compression: H.264
Motion Detection: Yes (through Alarm.com Video Analytics)
Two-Way Audio: Yes
ADC Video Analytics: Yes
Clip Viewing: ADC app & website
WIFI Connectivity: 802.11 b/g/n, 2.4 GHz
Battery Pack Capacity: 9540 mAH nominal capacity
Charging Requirement: 5V/1.5A charger (not provided)
Charging Time: Up to 7 hours
Speaker: 1W, 8Ω speaker
Microphone: Single, omnidirectional, analog, >-40dBV/Pa
Ingress Protection: IP66
Included Accessories: Mounting plate, 10° tilt wedge, Battery Pack, Charging cable, Mounting screws, Mounting anchors, Installation guide
Dimensions: (W x L x D): 2.5" x 5.3" x 1.2” (6.35cm x 13.46cm x 3.05cm); mounting bracket adds 0.2” (.51 cm) to depth
Operating Temperature: -4°F to 122°F (-20°C to 50°C)
Operating Humidity: 20% to 100%, Noncondensing Relative Humidity