Review: Mammut Barryvox S2

Mammut has long been a leader in snow safety, and the company’s newest beacon, the Barryvox S2, continues their tradition of innovation and precision. Mammut knows that when it comes to beacons, reliability isn’t just a feature—it’s the foundation.

Fortunately, I haven’t had to use the beacon in a real-world burial scenario (and I hope that remains the case), but after putting it through its paces in multiple mock-rescue drills, I can confidently say this: the guided rescue features are intuitive, clear, and confidence inspiring. Whether you’re a backcountry beginner or a seasoned pro, this beacon walks you through the search process in a way that makes sense even in high-stress scenarios when every second counts.

After diving into the features, I found myself completely drawn in by the online user manual—something I wouldn’t normally say about an instruction book. The depth of detail is impressive. Mammut has managed to design a beacon that’s equally accessible to those new to avalanche safety, yet advanced enough for professionals.

As for features, the range is top-tier, the multiple burial search is seamless, and the interference resistance is excellent. The Barryvox S2 doesn’t trade off one key function for another, which is rare. It’s a versatile tool that doesn’t compromise

One standout addition to the beacon is the companion app, which allows you to check for software updates, ensuring your device is always running the latest improvements. The app also offers training modes, FAQs, and interactive guides to help users refine their search techniques and get comfortable with the beacon’s features before heading into the backcountry. It’s a terrific resource for both beginner and experienced users.

At the end of the day, a beacon is something you buy hoping you’ll never actually need. But if the moment comes, you want the Barryvox S2 in your kit. It’s fast, smart, and gives you every possible advantage in a high-stakes situation.

$599; available at mammut.com.