Alarm.com Cameras with 2-Way Audio: Which Models Have It?

Why 2-Way Audio Matters in a Security Camera

Watching what happens at your property is useful. Being able to respond to it in real time is better. That's the gap 2-way audio fills. Whether a delivery driver needs to know where to leave a package, a visitor is waiting at the door, or someone is lingering near your property a little too long, being able to speak through your camera turns a passive recording device into an active communication tool.

The problem is that not every Alarm.com camera includes this capability. Some models carry both a microphone and a speaker for full talk-and-listen functionality. Others have only a microphone for audio recording. Some have no audio hardware at all. If you buy the wrong model expecting to speak through it, you won't find out until it's already mounted on the wall.

There's also a second requirement many buyers miss: even with the right camera, you need an active Alarm.com video plan for 2-way audio to work through the app. This guide covers which Alarm.com cameras support the feature, what you actually need for it to function, and which setup makes the most sense for your home or business.

What 2-Way Audio Actually Means

2-way audio requires two hardware components built into the camera: a microphone to capture sound near the camera, and a speaker to project your voice back through it. With both in place, you can open a live feed in the Alarm.com app, listen to what's happening, and speak directly through the camera in real time.

This is different from 1-way audio, where the camera can hear but not speak back. A camera with only a microphone can record audio or let you listen during a live view — but you can't respond. If you specifically want to communicate with someone at your door or deter suspicious activity by speaking through the camera, you need a model that supports both.

Alarm.com Cameras That Have 2-Way Audio

1. ADC-V523X — Indoor Wi-Fi Camera

The ADC-V523X is one of the most practical choices for homeowners who want indoor monitoring with full 2-way audio. It delivers 1080p HD video with HDR and a 117° field of view, along with a built-in microphone and speaker. This model works well in living rooms, nurseries, home offices, and common areas where you want to check in or communicate remotely with family members.

2. ADC-VC727P — Pro Series PoE Camera

The ADC-VC727P is a hardwired Power-over-Ethernet camera rated for indoor and outdoor use. It records at 1080p and includes 2-way audio with recording capability when paired with a compatible Alarm.com video plan. Because it uses PoE instead of Wi-Fi, it's a common choice for outdoor coverage, commercial properties, and installations where long-term connection stability matters more than wireless convenience.

3. ADC-VDB775 — Wi-Fi Video Doorbell

For most homeowners, the video doorbell is where 2-way audio sees the most daily use. The ADC-VDB775 delivers 1080p HDR, night vision up to 15 feet, a fully customizable field of view, and full 2-way audio. Whether you're talking to a guest, directing a delivery driver, or letting someone know they're being watched, this is the camera built for front-door communication.

4. ADC-VDB780B — Battery-Powered Video Doorbell

The ADC-VDB780B offers the same core 2-way audio experience as the VDB770 without requiring doorbell wiring. It's fully battery-powered with up to 6 months of battery life, making it the easier installation option for renters, older homes, or anyone who doesn't want to deal with existing wiring. The trade-off is slightly lower video performance and fewer advanced customization options compared to the VDB770.

Cameras Without 2-Way Audio

Many Alarm.com cameras are designed strictly for surveillance. They capture high-quality footage, integrate with the platform, and support remote viewing — but they don't include the hardware needed for two-way communication.

Models like the ADC-V515 (indoor baseline) and ADC-VC728PF (varifocal PoE) fall into this category. They're solid surveillance cameras, but if you buy one expecting to speak through it, you'll be disappointed after installation. Always check the spec sheet before purchasing. Look specifically for references to a built-in speaker — a microphone alone only enables audio recording, not talk-back.

You can browse all compatible models in the Alarm.com Video Cameras Collection and filter by what matters most to your setup. For a broader look at what works with the platform, the Compatible Alarm.com Cameras guide is also worth reviewing.

Do You Need a Special Plan for 2-Way Audio?

Yes — all Alarm.com cameras require an active Alarm.com video plan to function. 2-way audio is included in standard video plan access through the Alarm.com app, so you don't need the most expensive tier just to speak through a compatible camera.

Higher-tier plans like Pro Video with Analytics add smart detection features such as person detection, vehicle detection, and reduced false alerts. These are useful additions, but they're separate from 2-way audio itself. As long as the camera supports both a microphone and speaker, your account includes an active video plan, and the camera is properly configured in the app, you can use live interactive audio normally.

How to Use 2-Way Audio in the Alarm.com App

Open the Alarm.com app, navigate to the live feed for your compatible camera, and look for the microphone or speaker icon. Tapping it activates 2-way communication. Speak clearly at a normal pace — the camera's speaker will project your voice in real time. The experience is similar to a speakerphone call, though you may notice a slight delay depending on your internet connection.

Placement affects audio quality. Indoor cameras tend to produce cleaner voice clarity. Video doorbells are optimized for face-to-face entry communication. Outdoor cameras mounted high above a driveway will still work, but ambient noise and distance can affect how well your voice carries.

Note: live 2-way communication and stored audio recording are separate settings. Whether audio is saved alongside recorded clips depends on your plan settings and camera configuration. In commercial environments, audio recording laws vary by location, so it's worth reviewing those requirements before enabling recording features.

Quick Comparison: 2-Way Audio Cameras

The Bottom Line

For most homeowners, the ADC-V523X paired with the ADC-VDB775 covers the two situations where 2-way audio gets used most: indoor monitoring and front-door communication. 

If you're in a rental or older home without doorbell wiring, swap the VDB770 for the VDB780B. For commercial installs where wired reliability matters more than wireless convenience, the ADC-VC727P is the stronger choice.

Before ordering, confirm three things: the camera lists both a built-in microphone and speaker, your Alarm.com account includes an active video plan, and the camera fits your installation environment. Browse the full Alarm.com Wi-Fi Camera collection to compare models, or contact our team if you're not sure which option fits your setup best.