Great for keeping kids safe, the Coghlans Plastic Signal Whistle emits a shrill tone when blown. An essential item for wilderness trips, canoeing, hiking, and boating, it has a bright yellow color for high visibility and an included lanyard. Coghlans makes the outdoors more comfortable and enjoyable with over 450 accessories for camping, hiking, fishing, and RVing -- from cooking gear to first aid kits, insect netting, firestarters, tent repair, and more.