Barryvox S2 Beacon
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Only 4 In stock
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Why We Like The Mammut Barryvox S2 Beacon
Mammut updated its line of incredibly intuitive beacons with the Barryvox S2 Beacon, upgrading the display and the analog search functions while making the beacon smaller and lighter than ever. The beacon's minimalist design allows us to quickly become familiar with its capabilities after just a few rounds of beacon drills, and the updated guidance features help us stay focused while we search. The triple antenna provides an impressive 70-meter digital range, which is on the high end of most beacons currently available.
The Barryvox S2 clearly shows us the distance, direction, and number of buried subjects on the brand-new MIP high-contrast display. The new acoustic search guidance emits a tone that guides us in the direction of buried victims so we can find the safest route to cross the avalanche field, and the voice guidance audibly provides clear instructions during high-stress situations. The device will automatically switch back into send mode if we've been still for four minutes, just in case we are involved in an accident while searching for a victim. The beacon comes with alkaline batteries and a carry case to keep so we can quickly get to practicing drills as soon as it arrives.
Details
- Powerful avalanche beacon with an intuitive design
- Triple antenna offers a 70-meter digital range
- MIP high-contrast display shows information clearly
- Distance, direction, and victim number are provided
- Audible guidance helps us search for buried victims
- Group and self-tests ensure our beacon is working properly
- Auto-revert to send after not moving for four minutes
- Works with Mammut app to receive software updates
- Item #MAMU5XF
- Antennas
- triple
- Digital Range
- 70m
- Batteries Included
- 2 AAA (alkaline)
- Battery Life
- [alkaline] 250 hours in send mode, [lithium] 350 hours in send mode
- Harness Included
- yes
- Claimed Weight
- 6.3oz
- Activity
- backcountry skiing, backcountry snowboarding
- Manufacturer Warranty
- limited 5 year with registration
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 3 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageJuly 16, 2025
Great
Have used the Barryvox 2 for 20+ days this season, has worked really well in avy testing and practice. Easy to use, but also tons of features if you need them.

Originally reviewed on ExpertVoice.com
March 31, 2025
Latest Tech
Simple and reliable to use if that is what you want, but also plenty of tech if you want to really dive into all the functions.

Originally reviewed on ExpertVoice.com
January 14, 2025
Best transceiver yet
Intuitive, fully featured, easy to use. Harness fits great and the bareyvox is easy to access. I like the adjustable leash. Buttons are easy to move but also stay where you want them.

Originally reviewed on ExpertVoice.com
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October 11, 2025