[Unmatched Versatility]The 7-in-1 safety whistle has 7 functions including emergency whistle, compass, thermometer, LED signal light, magnifying glass, reflector and sealed storage with good playability (The uniquely designed miniature built storage container can be used to store important personal information , so that rescuers can understand your situation at the first opportunity) (NOTE: If you need help in an emergency, you can try to whistle softly, which is louder than whistling at full blast)\n[The perfect gift] Anyone who is interested in adventure , hiking trips or camping events need this 7-in-1 outdoor multi-functional safety whistle as birthday gifts for men, husband dad or boy scout friends and preparation for the next Boy Scout March and improve outdoor skills\n[High quality and easy to carry] The emergency whistle is made of ABS high strength , drop resistance and high temperature engineering material, lightweight and fail safe fine whistle works well in all conditions with excellent airflow design. This survival whistle comes with a long enough lanyard, which can be tied to your backpack, belt or neck\n[Wide range of use] Whistles with lanyard to carry for life safety, cycling, skiing, camping, hiking, jogging, backpacking, hunting, archery, fishing , swimming, boating, kayaking, marine sporting events all types of outdoor activities