this is a link to the 2009 barry manual. check out page 38-39 (or the whole manual if you have time). under "technical data" (top of 39) it specifically notes it meets the 457 kHz int'l standard, so sorry andrew, but hell no brah. the w-link vital detection frequency is split into region A (North america) at 869.8 Mhz, and region B (europe) at 916-926 MHz. Most of asia does not allow w-link systems. You can switch regions in all of 30 seconds or arround four pushes of either of all two buttons. YOU CANNOT CHANGE THE 457 TRANSMITTER FREQUENCY BECAUSE NO OTHER FREQUENCY IS ACCEPTED AS AN INT"L STANDARD http://www.mammut.ch/images/P_BARRY_MANUAL_EN_2009.pdf

The unit uses the international standard frequency. This beacon will work with any other 457 beacons in EU or USA or anywhere doesn't matter where. What you've heard about a different frequency pertains only to the Pulse feature (sensitive motion sensor) which can detect respiration of a victim. This feature uses a different frequency in Europe than the US due to FAA regulations. The units settings can be changed by the user if you buy it in the US and travel to Europe lets say. Again, this beacon will work everywhere.

Just to put another vote in here, Evan is completely correct, Andrew you are NOT CORRECT, not sure where you are getting your information. There is an international standard for avalanche transceiver transmissions, they all transmit and receive at 457 kHz, all across the world.

It is easy to change where it will work and not, but I am pretty sure that it works world wide, just the wireless frequency to change features works on different frequencies. In terms of the signal it transmits and receives, that is no doubt, 100% the same across the globe.

It will NOT work in Europe. Mammut specifically makes different frequency beacons for each country.