Tracker™ is a handy pocket flashlight of 3-1/2" (9 cm) in length which attaches to almost anything making it an ideal hands free flashlight. The Tracker™ easily fits into tool/fishing boxes, photographer's equipment, travel bags and is perfect for any outdoor activity, scuba diving, home, office or emergency lighting. Submersible to 500 feet, the Tracker™ is ideal for anyone to use as a warning or emergency light. It includes 2-AAA cell Alkaline batteries and is CENELEC approved. You break it, we replace it... forever.