Water-resistant aircraft aluminum case is sealed with premium grade O-rings. Self-cleaning internal switch helps expel corrosive buildup. A diamond-knurled grip makes Mag-Lite® easy to handle. Mini Maglites® give you the same features but in a pocket size. Mag Charger™ System gives you a rechargeable Mag-Lite® with a NiCad battery pack, charger unit, mounting bracket and 12V DC cigarette lighter adaptor and 110V AC converter. Batteries not included.