781B Battery Video Doorbell

• No wires? No problem. Install the doorbell anywhere with Wi‑Fi connection—no wires required. Upcoming Bluetooth® Enrollment makes setup faster than ever.
• Get alerts that matter. Smart Analytics identifies people, animals, vehicles, and familiar faces. Package alerts and Perimeter Guard® add proactive protection.
• Chat with visitors from anywhere. A louder speaker and microphone make conversations clear. Use Call Screen Actions to unlock the door for guests.
• Conserve battery power. Energy Saver Video Analytics conserves power during inactivity, while optional wiring inputs support continuous trickle charging.
• Built for the Volt Series™. The removable universal battery pack is cross-compatible with the V731B Battery Camera, simplifying battery management.

• Resolution. 1536x1536 resolution
• Aspect Ratio. 1:1
• Field of View. 148º x 148º
• Audio. Two-way audio
• Night View. IR
• Bluetooth® Enrollment. Supported. Learn more.
• Analytics UX. Video Analytics 2.0. (Energy Saver)
• Detection Types. Person, animal, vehicle, packages (coming soon)
• Advanced Detection. Familiar Face Analytics (coming soon)
• Deterrence Features. Perimeter Guard® and AI
• Deterrence (separate add-on)
• Operating Temperature. -20º to 45ºC (-4º to 113ºF)
• Battery Information. Universal rechargeable battery (compatible with 731B)
• Power Requirement for Trickle Charge. 8-24VAC with a power rating between 5-40VA
• Connectivity. 2.4 and 5 GHz (dual-band)
• Hub Requirement. If desired, the 781B is compatible with W114C and W115C chimes, but no hub is required for the doorbell to operate.

Add Device
Customer website > Video > Settings > + Add Device
Mobile App > Video > Tap Settings cog > Add Device +
Check Battery Status
Customer website > Video > Settings > Select device > Battery Status
Mobile App > Video > Tap Settings cog > Select device > Battery Status
View Live Video
Tap push notification > mobile app > Video
Mobile app > Video
Customer website > Video
View Saved Clips
Mobile app > Video > Saved 
Customer website > Video > Saved Video Clips
Configure Recording Rules
Standard rule
Mobile App > Video > Tap settings cog > Recording Rules > +Add New Rule
Customer website > Video > Settings > Recording Rules > Add
Perimeter Guard® + Spotlight
Mobile App > Video > Tap settings cog > Recording Rules > +Add New Rule > Toggle Perimeter Guard® on > Toggle on Camera Light Alert and Camera Audio Alert as desired > Adjust light alert duration and pattern > Select desired audio tone and adjust volume
Customer website > Video > Settings > Recording Rules > Add > Toggle Perimeter Guard® on > Toggle on Camera Light Alert and Camera Audio Alert as desired > Adjust light alert duration and pattern > Select desired audio tone and adjust volume

Customers can create up to three Video Analytics rules with up to six features, which can be used simultaneously. They work by detecting activity within an identified "ground zone" or virtual tripwire.

 

Analytics detection types
 

• New to doorbells! Animal and vehicle detection. The 781B is our first battery video doorbell to feature animal and vehicle detection for more relevant alerts.
• Person Detected. Receive alerts when a person is detected.
• Package Alerts. Get alerted when packages are delivered and when they go missing with Package Alerts. Note.
• New to Alarm.com! Familiar Faces. Teach the doorbell to recognize up to five faces as "familiar" and create custom notifications. Learn more. 

   

Analytics-triggered capabilities

• Video Analytics Triggered Z-Wave Lights Automation. Once a person is detected within the area of interest, Z-Wave lights will turn on.
• New to doorbells! AI Deterrence. Deliver AI-generated verbal messages when guests are detected by the doorbell. 
• Perimeter Guard®. Stop unexpected visitors in their tracks with an attention-grabbing combination of blinking LED and audio alert. 

Battery-powered video doorbells offer maximum placement flexibility because they don’t require wiring to an existing doorbell circuit.  
 
They’re ideal for protecting non-powered entrances like side or back doors and even sheds or detached garages. When wiring is available, the doorbell can receive a trickle charge, eliminating the need for manual recharging. 

Yes. The ADC-VDB781B runs on a removable, rechargeable battery and connects over dual-band Wi-Fi—no wiring required.  

If you have existing doorbell wiring, you can connect it to keep the battery topped off with trickle charging.  

It depends on how much the doorbell gets used—and the weather. 
 
Frequent motion detection, long live streams, and extreme heat or cold drain the battery faster. Light activity and mild conditions help it last longer. 

Pop out the battery and charge it via USB-C, or swap in a spare for instant power. 
 
If you want hands-free charging, your Alarm.com service provider can wire the 781B to an existing doorbell circuit for continuous trickle charging 

Beyond just alerting you when someone's at the door, the 781B can actively respond. 
 
With Perimeter Guard®, it can sound an audible warning when it detects a person approaching—drawing attention to the camera and deterring trouble before it starts

No hub required. The 781B connects directly to your Wi-Fi and works with Alarm.com doorbell chimes if you want one. 
 
You will need an Alarm.com subscription through a service provider—same as with all Alarm.com cameras.

The Alarm.com 781B doorbell (ADC-VDB781B) is available exclusively through authorized Alarm.com service providers.  
 
To get started, you’ll need to connect with a local provider who can install, set up, and support it as part of your personalized smart home system. 
 
Use the Alarm.com “Find a Provider” tool to connect with a local expert and get your doorbell set up.