With a shrill double tone, making it easy to hear over howling wind or pounding waterfalls, this affordable safety whistle is ideal for use when communicating in canyons or signaling in an emergency.
The plastic whistle features a clip that allows it to attach to a pack, harness, or helmet, while a hole allows it to be secured with a length of 2.5mm accessory cord.
With no moving parts to jam or deteriorate, it will continue to work even in wet and muddy environments.