The Arva Life Bip 3 Avalanche Rescue Transmitter Belt The Arva Bip 3 has many applications. A transmitter only, the Bip is a handy device to have when skiing in resort at any area where avalanche hazard exists. While most avalanche patrol experts do a great job, it's inevitable that every once in a while one will get past them. An Arva Bip may just save your life on such an occasion. Other uses for a Bip might include finding your camp in a blizzard. (throw a bip in your tent when you leave camp and on your return if whiteout conditions exist search for your campsite using your avalanche beacon). Some people also put a bip on their dog but we don't recommend this as you could end up digging up your dog while your girlfriend remains buried nearby! 457 kHz, compatible with any Arva avalanche tranceiver. Autonomy : more than 100 hours. Range : 60 m maximum

The Opti-4 uses an arc of lights which show increasing signal strength while emitting a "pieping" sound (now a deeper more audable pitch) to lead you quickly in to the signal. You simply orientate yourself so that the signal is the strongest and march forward. When all four lights are lit up, turn the knob on top decreasing the sensitivity and do it again (note, as with all beacons, you will likely follow a curved path to the signal as you follow the magnetic flux line). The combined audio and visual feedback of the Pieps Opti-4 create a highly intuitive system. The Pieps Opti-4 operates exclusively on the world standard 457 kHz frequency. This is a name which is trusted by ski patrollers worldwide. All PIEPS avalanche transcievers come with a 5 year warranty.