2 Pack Emergency Survival Whistle, 3-in-1 Emergency Whistles with Compass and Thermometer, Loud Safety Whistle with Lanyard for Outdoor Hiking

3 in 1 multi-functions, besides an emergency whistle, it is also a compass and a thermometer, bring you necessary information during outdoor sports.
You can use your favorite lanyard instead of nylon lanyard. bring no burden to your outdoor sports, with neck lanyard easy to get in any situation, it also can be tied to your backpack, belt and so on.You can tying this to your PFD and that works pretty good.
Loud safety whistle for camping, hiking, cycling,skiing, any kind of outdoor activities, and can be also for Coaches, Instructors, Sports, Teachers, Life Guard, Protection, Self Defense.