Be heard with Coghlan's Air Horn. This compact yet loud air horn signals up to one mile away. Designed to be easy to carry in any pack, this air horn is great to have in case you encounter issues while exploring the outdoors. Great for deterring animals from approaching or for signaling for help, the easy-to-use air horn can help you get out of trouble on the trail.FeaturesLoud signal can be heard from a mile awayCompact and easy to carry hikingLasts for approximately 70 blastsUSCG regulation compliant115 decibels