Mammut
Mammut Barryvox Avalanche Transceiver
$299Cheaper
Best Avalanche Beacons · head-to-head
Mammut Barryvox Avalanche Transceiver vs Backcountry Access Tracker4 Avalanche Beacon
A sourced, side-by-side comparison. Mammut Barryvox Avalanche Transceiver is cheaper at $299. Every spec and price links to its source.
Backcountry Access
Backcountry Access Tracker4 Avalanche Beacon
$399.95
Which is better: the Mammut Barryvox Avalanche Transceiver or Backcountry Access Tracker4 Avalanche Beacon?
The Backcountry Access Tracker4 Avalanche Beacon wins 1 of the 1 specs we compare head to head; the other wins 0. The Mammut Barryvox Avalanche Transceiver is the cheaper at $299. Get the Backcountry Access Tracker4 Avalanche Beacon for the stronger spec sheet, the Mammut Barryvox Avalanche Transceiver to spend less.
See Mammut Barryvox Avalanche Transceiver on Amazon See Backcountry Access Tracker4 Avalanche Beacon on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Mammut Barryvox Avalanche Transceiver | Backcountry Access Tracker4 Avalanche Beacon |
|---|---|---|
| US price | $299 | $399.95 |
| Brand | Mammut | Backcountry Access |
| Released | — | — |
| Search strip width (m) | 70 | 55 |
| Number of antennas | 3 | 3 |
| Multiple burial marking | Yes | Signal Suppression (SS) + Big Picture (BP) multi-victim modes; no dedicated flag/mark button |
| Frequency (kHz) | 457 | 457 |
| Battery type life | 3x AAA alkaline, ~300 hr in SEND mode | 3x AAA alkaline, ~250 hr transmit-only or ~50 hr search-only (min. 1 hr search after 200 hr transmit) |
| Display type | Backlit LCD, 2.0 in., combined digital/analog readout | Temperature-resistant LED |
| Auto revert to transmit | Yes — switches to SEND after 4 min without motion (non-disableable) | Yes — motion-sensing auto-revert (AR) |
| Weight (g) | 210 | 176 |
Sources — Mammut Barryvox Avalanche Transceiver: mammut.com (verified 2026-08-11). Backcountry Access Tracker4 Avalanche Beacon: backcountryaccess.com (verified 2026-08-11).
What's the difference between the Mammut Barryvox Avalanche Transceiver and Backcountry Access Tracker4 Avalanche Beacon?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Search strip width (m): Mammut Barryvox Avalanche Transceiver 70 vs Backcountry Access Tracker4 Avalanche Beacon 55
- Multiple burial marking: Mammut Barryvox Avalanche Transceiver true vs Backcountry Access Tracker4 Avalanche Beacon Signal Suppression (SS) + Big Picture (BP) multi-victim modes; no dedicated flag/mark button
- Battery type life: Mammut Barryvox Avalanche Transceiver 3x AAA alkaline, ~300 hr in SEND mode vs Backcountry Access Tracker4 Avalanche Beacon 3x AAA alkaline, ~250 hr transmit-only or ~50 hr search-only (min. 1 hr search after 200 hr transmit)
- Display type: Mammut Barryvox Avalanche Transceiver Backlit LCD, 2.0 in., combined digital/analog readout vs Backcountry Access Tracker4 Avalanche Beacon Temperature-resistant LED
- Auto revert to transmit: Mammut Barryvox Avalanche Transceiver Yes — switches to SEND after 4 min without motion (non-disableable) vs Backcountry Access Tracker4 Avalanche Beacon Yes — motion-sensing auto-revert (AR)
- Weight (g): Mammut Barryvox Avalanche Transceiver 210 vs Backcountry Access Tracker4 Avalanche Beacon 176