Kayaking emergency Strobe is the personal recovery light for all outdoor enthusiasts. It is powered by one "D" cell alkaline battery (not included), allowing it to flash 60-70 times per minute up to 16 continuous hours, then at a diminished flash rate for up to 60 hours total. Light is visible up to 3 miles, depending on atmospheric conditions. It easily attaches to a backpack, belt or Personal Flotation Device by its stainless steel locking pin. Making others aware of your location can be a very valuable lifesaving benefit in a variety of situations, on land or water. The magnetic "reed" on/off switch, waterproof case and hard acrylic lens cover make this a durable personal safety product.