Caught in an emergency situation? The UST Aluminum Whistle is a helpful tool for almost any emergency and will make sure that you are always heard. This durable aluminum whistle is compact and can easily be brought with you anywhere - in a pocket or attached to a bag. The high-pitched sound will carry a longer distance than your voice and can help you if you are lost in the woods or if immediate attention is needed. This whistle features a D-clip which allows the user to attach it to their backpacks or other types of gear. Also, the bright orange color prevents users from losing or misplacing it!