You are using a web browser we don't support. Please use the latest version of one of these browsers.

Mozilla Firefox

Google Chrome

Apple Safari

Microsoft IE

Back to top

Please select a color/color.


  • Digital three-antenna design allows precise searching, even in deep-burial and close-proximity searches; locates burials within a 60m range in digital and 95m in analog
  • Features two user profiles that you can choose from: basic and advanced
  • Basic profile operates in digital mode and provides an overview of the number of victims; device automatically searches for the strongest signal (no manual selection possible)
  • Advanced profile operates in digital and analog mode and allows manual scrolling of the list of victims; you can select a victim to search for
  • Advanced profile also lets you search in full analog mode to enhance range, however, digital mode better distinguishes multiple signals to speed searching for multiple vicitms
  • In multiple burial scenarios, use the side button to mark rescued victims to mask their transceiver signals so you can more easily search for other victims
  • Backlit display with 360° real-time direction indicator quickly leads user to victim
  • 3D motion sensors receive and record victim's vital heart rate data, letting you quickly perform the triage required to maximize rescue efforts
  • Waterproof, shock-resistant case features nonslip rubber buttons and grips for easy operation with gloves
  • Adjustable bungee lanyard with clip secures around wrist or to jacket during a busy search to prevent inadvertent loss
  • Operates on three AAA alkaline batteries (included) for approximately 200 hrs. of transmission time or 15 hrs. of receiving time
  • Mammut Pulse Barryvox avalanche transceiver is compatible with all transceivers operating on the 457 kHz frequency
  • Includes the firmware 4.0; firmware can be updated via W-Link connection by certain Mammut dealers; check Mammut's website to find a shop near you that offers the updates


For enhanced reliability and effective monitoring of battery life, manufacturer recommends the use of alkaline batteries with transceiver.

View all Mammut Avalanche Transceivers

REI membership


Best Use Backcountry Skiing
Analog Or Digital Both
Range (Digital mode) Up to 60 / (analog mode) up to 95 meters
Antennas 3
Multiple Burials Yes
Marking Function Yes
Dimensions 4.45 x 2.95 x 1.06 inches
Weight (With batteries) 210 grams

The REI Difference

100% satisfaction guaranteed

We stand behind everything we sell. If you are not satisfied with your REI purchase, you can return it for a replacement or refund within one year of purchase.

REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

If your item has a manufacturing defect in its materials or workmanship, you can return it at any time. See our limited warranty.

Gear & advice you can trust

At REI, we live and breathe the outdoors, and we're passionate about sharing our expertise with people of all skill levels. Whether you're new to the outdoors or a seasoned explorer, we'll take the time to understand your needs and help you find the right gear for you.

10% annual member refund

Anyone can shop at REI, but for a one-time $20 fee you can become an REI member and enjoy a lifetime of benefits. These include an annual member refund, typically 10% back on eligible purchases.*



*10% is typical but not guaranteed. Your refund is based on eligible purchases, which exclude REI gift cards, services, fees, REI Adventures trips, REI Garage, and discounted items. Learn more