Extremely loud survival whistle 122db for use in emergency situations or to keep in touch with companions an essential piece of kit for all outdoor enthusiasts that is part of the duke of edinburgh award recommended kit listthe life systems survival whistle could prove to be the difference between life and death if you ever need to be able to summon aid in an emergency situation it is also extremely useful for keeping in contact with other members of your party in the wildernessfeaturescol