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Barryvox S Beacon

4.964391691394659 out of 5 stars
337 Reviews

Out of Stock

Don't worry though, we have a lot more Avalanche Beacons in stock than that.

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Why We Like The Mammut Barryvox S Beacon

Compared to the standard Barryvox, Mammut's Barryvox S Beacon has more advanced features that appeal to experienced mountaineers and guides. The beginner-friendly interface remains, while the larger screen displays advanced graphics, the additional buttons allow for customization, and the lithium batteries prevent corrosion to give us reliable performance when we need it most.


  • Advanced beacon for dedicated backcountry skiers and splitboarders
  • Triple antenna boasts a massive 70-meter range in digital mode
  • Pro search option switches to analog for an even greater range
  • Smart search with dynamic icon assists with guidance while searching
  • Easy-to-see display shows distance, direction, and victim number
  • Auto switch from search to send after 4 minutes of no movement
  • Display screen is slightly larger than the standard Barryvox
  • Ergonomic housing is impact- and break-proof for reliability
  • Item #MAM00XN
Digital Range
Analog Range
95 - 100m
Auto Revert, Smart search, auto guidance, acoustic/visual search guidance, multiple victims, Pro search, reverse direction function, device tests, updatable software
alkaline, lithium
Batteries Included
Battery Life
[alkaline] 300 hours, [lithium] 350
Harness Included
4.5 x 2.6 x 1.06in
Claimed Weight
backcountry skiing, backcountry snowboarding
Manufacturer Warranty
2 year

Overall Rating

5 based on 337 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 12 reviews
5 Stars - 325 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

May 18, 2024

Solid, Reliable Beacon

Seems like a great choice for a beacon. Good features, reliable, and easy to use with gloves on. Hopefully I never have to use it!

John S

Originally reviewed on

5 out of 5 stars

April 29, 2024

Amazing beacon

This beacon is extremely easy to use. It's range is out of this world, and for Search and Rescue practice is absolutely perfect. My only complaint was, that the owners manual did not come with the product. I had to search it on line and it was not easy to find the correct manual that gave the advanced features.

Kevin D

Originally reviewed on

5 out of 5 stars

April 26, 2024

life saving item

Just the best product for the most essential touring item. Must buy.

Charles A

Originally reviewed on

5 out of 5 stars

April 22, 2024

Substantially increased pickup range vs competitors

I switched to the Barryvox S from a Tracker 3 and have noted that it routinely picks up an initial signal significantly further than other options, often 60m+, which gets you into course search mode much faster. One thing I have noticed with the Barrvox is that the refresh rate seems to be much slower than some other beacon options. This forces you to slow down during fine search and really be patient with your readings, which isn't necessarily a bad thing, but is something to be aware of. The Pro mode has a lot of features that are really confusing if you don't practice with them. However, I really love the analog mode, even for recreational purposes because it allows you do easily demonstrate electronic interference to companions or guests. I don't think that warrants everyone getting the S version, but this feature is helpful even for advance recreationalists who may be mentoring newer folks.

Jordan R

Originally reviewed on

5 out of 5 stars

April 21, 2024

Good features. Solid case

I've used it once or twice and have initial impressions

I bought this hoping it would be easy to use. Easy to follow screen display. Loving it so far.

5 out of 5 stars

April 15, 2024

Great Beacon

Easy to use, picks up signals much better than the Pieps I just sold

john h

Originally reviewed on

5 out of 5 stars

April 12, 2024

The best beacon out there

This beacon is reliable and easy to use. Will absolutely recommend it to anyone

Nicole M

Originally reviewed on

5 out of 5 stars

April 11, 2024

MAMMUT - Barryvox S

Mammut has been keeping me save for years, amazing, easy to use and reliable product.

James J

Originally reviewed on

5 out of 5 stars

April 11, 2024

Rock solid, reliable, accurate. No major gripes so far. Love the group beacon check feature.

Tyler A

Originally reviewed on

4 out of 5 stars

April 9, 2024

Solid & dependable beacon.

Pros: I love the added guide features. The signal tracking is rock solid, especially with multiple burials. Battery life is excellent. Cautions: The Mammut BS is perhaps the slowest beacon model out there, when it comes to the initial search. You will need to pause for two breaths and let the beacon lock on to the signal. In our test drills, Mammut users are often just as fast when they understand how their device searches and finds a signal. However, new users will often become confused if they rush their beacon. PRACTICE and get to know the behavior of your beacon. Also, the burial marking feature seems to only work in close range to the subject, i.e. it won't let you flag and mark at 4 m out, you'll need to get in closer to flag and move on. This can be awkward and inefficient in larger scenarios, with multiple searchers. I have several of these beacons and love them! However, this beacon may not be a great choice for the casual user. Unless you are willing to practice and get to know the nuance of how it behaves, it may seem confusing in a real life scenario.

Troy C

Originally reviewed on