Keep yourself safe using the buddy system out in the wilderness with the ASR Outdoor Companion Whistle Set! This set of 2 whistles come in a pair so that you and your buddy can make sure you're within ear's reach. The whistles have a 105 decible rating, so they can be heard with a single blow. They are constructed of durable plastic and come with a 16" lanyard so you can wear them around your neck. This is a must-have set of safety whistles for all hikers, campers and outdoor adventure enthusiasts!.