Increase your level of safety on big mountain tours or hut-to-hut trips with the Jetforce Avy Pack. The largest in the BT Booster collection from Pieps, this makes an ideal companion when you're going to be skiing multiple days on a single charge. Even at colder temperature the battery-powered fan on the Jetforce will hold enough juice for four inflations, and its rechargeable lithium battery is travel-friendly. Without having canisters to worry about, you can fly freely with the pack, and it also means there's zero cost for practicing deployment at home. The system runs automatic diagnostics, and you can connect it to a Pieps app on your phone for updates. With a diagonal back ski carry, the bag can still deploy in case you encounter an avalanche during a bootpack, and a hook-and-loop strap at the front offers a spot for your ice axe.