Mammut Barryvox S2

Produt Available from the 1st November 2025

The Mammut Barryvox S2 continuously checks its own operation with a self test function. For added safety on rescues, this avalanche transceiver is equipped with a rescue SEND function & automatic switching from search to send.

While searching for buried subjects, it guides you quickly with clear instructions via audible search guidance and cues on the easy-to-read animated display.

With fine search, it offers reliable guidance down to the last meters. You can perform updates, configurations & avalanche training on the Mammut app, so you're ready to make fast, smart decisions in emergencies.

What's Included

Mammut Barryvox S2 Beacon
Carrying Harness
Instructions (Multiple Languages)

Mammut Barryvox S2 Interface:

MIP display - the high-contrast and innovative Memory-in-Pixel display is clear and easy to read even in bright sunlight.

Intuitive visual interface - guides you intuitively through all search phases and provides an overview of multiple burials.

Intelligent fine search guidance: patented technology that guides you through the fine search with fully interactive visual and acoustic guidance.

Probe indication: as soon as the minimum burial depth has been found, the probe display guides you visually and audibly from the fine search to pinpointing.

SEND Mode:

Rescue SEND: Protective function for non-searching rescuers. In the event of a secondary avalanche it automatically switches to SEND to allow the rescuer to be located.

Auto-revert to SEND: safety function for rescuers searching with an avalanche transceiver in the event of a secondary avalanche burial. If a rescuer does not move for four minutes, the avalanche transceiver automatically switches from SEARCH to SEND thanks to a motion sensor.

Compatible with lithium batteries (550h battery life in SEND)

SEARCH Mode:

Analog search technology: the extended analog function for more efficient and accurate searches helps to solve complex search scenarios thanks to complex algorithms and signal processing techniques.

Additional functions for advanced users: discover all the possibilities of the Barryvox® S2 with the alternative search mode and individually configurable settings, which let you retain flexibility and control in every search scenario.

Pro search settings: combines a digital direction and distance display with an analog tone in the standard search mode and allows access to the alternative search mode.

Additional Bluetooth channel: enables faster separation of signals in complicated rescue scenarios.

BT vital data detection: the vital data transmitted via Bluetooth helps rescuers to make triage decisions in order to focus on buried subjects with an increased chance of survival.

Voice Guidance:

Voice guidance: your Barryvox® assists you with additional instructions in all search phases. This feature is currently not available in Germany, Austria and Switzerland and the USA.

Acoustic search guidance: a sequence of tones guides you in the direction of the buried subject and ensures that you can keep your eyes on the avalanche field during the search.

Self-Test / Group Check Mode:

Pro Check: in this mode the transmit frequency, the pulse duration and the period lengths of other avalanche transceivers are checked.

Automatic self test: your Barryvox® checks your transmit and search function signal when it is switched on and carries out regular transmission and battery tests.

Interference Guard: your Barryvox® manages and reduces signal interference and indicates any interference in transmit and search mode.

Group check: check the transmission frequency and strength of other avalanche transceivers quickly and easily with this function to ensure correct functionality.

Multiple / Deep Burials:

Auto-Select: in the event of multiple burials, your Barryvox® will guide you to the strongest signal first.

Scrolling function for multiple burials: gives a clear overview of up to 16 buried subjects for more efficient group searches and triage decisions.

Selection function for multiple burials: in the case of multiple burials, burials can be selected, marked and unmarked on a list.

Deep burial mode: if a very deep burial is detected, the fine search automatically starts earlier (> 3m) for precise guidance

Marking for deep burials up to a distance of 6m

Configure Settings, Bluetooth, App Compatible:

Configurable settings for acoustic guidance, voice guidance, visual guidance, Pro Test, vital data detection and time-out definition for rescue send and automatic switching from search to send.

Compatible with the Barryvox app for firmware updates, configuration settings, search training with the Barryvox®

Mammut Barryvox S2 Tech Spec:

Suitable for Skiing, Mountaineering, Ski Touring
Type Digital: 3-antenna device
Buried subject marking mark
Sending frequency: 457 kHz
Battery type: Alkaline and lithium 2 x AAA 1.5 volt
Battery life Standard requirement: at least 200 hours SEND at 10 degrees Celsius, followed by 1 hour SEARCH, at -10 degrees Celsius
Batteries included: Yes