Unparalleled Versatility 7 in 1 safety whistle combines 7 functions of emergency whistle, compass, thermometer, LED signal light, magnifier, reflector and sealed warehouse in one, with good playability (uniquely designed micro built-in storage box can be used to store important personal information, allowing rescuers to grasp your situation at the first time) (Note: If you need help in an emergency, you can try to whistle gently, which is louder than blowing a whistle with full force) Perfect Gift Anyone interested in adventure, hiking or camping activities needs this 7 in 1 outdoor multi-function safety whistle as the best gift for men, husband dad or Boy Scout friends on their birthdays, prepare for the next Boy Scout parade and improve outdoor skills High-quality and easy to carry emergency whistle is made of ABS high-strength, drop-resistant and high-temperature resistant engineering material, lightweight and fail-safe beautiful whistle works well in any conditions with excellent airflow design. This survival whistle comes with a lanyard long enough to be tied to a backpack, belt or neck Wide range of uses The whistle with lanyard can be used for life safety, cycling, skiing, camping, hiking, jogging, backpacking, hunting, archery, fishing, swimming, boating, kayaking, marine sports events and any type of outdoor activities Customer Service Guarantee Quality and customer satisfaction are our top priorities. We are very confident in our products. If the survival tool does not meet your expectations, or if you have any questions, please contact us in time and we will solve it for you to ensure that you are satisfied with your purchase. This is the latest 7-in-1 safety whistle from YL Mainlands in 2022. Its design is inspired by jungle warfare. It has helped many soldiers survive in harsh environments. Outdoor hiking, traveling, camping, mountaineering, cycling or in dark environments, this multi-functional whistle can be used to seek help, alert others or scare away wild animals.