Waterproof, crushproof & airtight, the Otter Box 3000 is the waterproof case youve been looking for to protect your GPS or smartphone from the elements. Built from high-quality polycarbonate & tested underwater to 100 feet, the Otterbox 3000 is the perfect sidekick for any outdoor adventure. The Otter Box 3000 has two external latches that keep the case secure & a lanyard for convenient carrying.