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High-performance avalanche transceiver with intelligent search guidance and pro-level customisation for fast, confident rescue response.
The Mammut Barryvox S2 Transceiver is a compact, digital 3‑antenna avalanche beacon built for demanding backcountry riders who want maximum search performance with intuitive operation. Its 70 m search strip width and powerful processor deliver rapid signal acquisition and clear direction and distance guidance, helping you get on top of a burial zone quickly in complex terrain. The Intelligent Fine Search Guidance, unique to Mammut, supports you through the crucial final metres of the search by coaching how to move and position the device for the strongest signal, reducing common cross-search mistakes and shaving precious seconds off rescue times. A bright, high‑resolution 2.3" MIP display, acoustic search tones, and glove‑friendly controls keep information clear and legible in low light, storm conditions, and while wearing polarised goggles. Pro users can unlock advanced functions such as analog search tones, Pro Check, and detailed pro search settings, letting experienced partners manage complex multiple burials and interference-heavy environments with finer control. The unit runs on two AAA batteries (alkaline or lithium), offers extended SEND time with lithium cells, and continuously self‑tests and monitors for signal interference so you can focus on decision‑making rather than device status.
Waterproofing
Rugged housing engineered for winter touring and ski mountaineering, with sealed electronics and impact‑resistant casing to handle snow, moisture, and daily pack or harness carry.
Warmth
Not applicable – electronic safety device designed to be worn close to the body under outer layers; performance is focused on signal reliability and battery life in cold conditions.
Fit
Compact form designed to sit low‑profile in the supplied harness or inside a secure pocket without restricting movement.
Digital 3‑antenna design: Modern 457 kHz triple‑antenna architecture delivers precise distance and direction information while minimising signal spikes and nulls in deep or complex burials.
70 m search strip width: Long effective range shortens coarse search phases and increases coverage per rescuer, especially helpful in wide avalanche paths and group travel.
Intelligent Fine Search Guidance: Guidance system coaches your movements in the final search phase, helping you lock in on the strongest signal quickly and accurately.
Acoustic and visual guidance: Clear on‑screen arrows and distance plus progressive audio tones allow you to keep eyes on the debris field while homing in on the signal.
Pro search and analog modes: Optional pro-level settings combine digital display with analog tones, signal selection, Pro Check, and advanced tools for guiding complex multi‑burial rescues.
Interference management and auto functions: Manages and indicates signal interference, runs automatic self‑tests, and includes auto‑revert and Rescue SEND options for extra safety in secondary avalanche scenarios.
Bluetooth app connectivity: Smartphone app support simplifies device customisation, fleet management, and firmware updates so your beacon stays current and tuned to your preferences.
