Military surplus ammo box with 20 watt HI FI amplifier and 12v sealed battery .The battery allows you to play music while charging an ipod for over 18hrs! High quality speakers provide loud and clear sound from any audio device with a headphone jack and a cigarette lighter port allows you to charge your device with any vehicle charger. Includes ac charger adapter for home charging but can be configured to charge in your vehicle or I can make it solar powered . Each box is custom made and hand built by me alone and can be completely built to your specs with your choice of 9mm or 50 cal box and your choice of bullet knobs or standard , also you can choose your type of insert material and grills. These are not cheap ipod speaker stereos the amps I use have the same components and technology as the Bose wave system . These are for the outdoors type that wants a rugged stereo for their quad , tractor , or golf cart and someone that does not want to sacrifice high quality sound for ruggedness. Guaranteed the best sounding ,longest battery life , most envied job site radios ever. Perfect for the outdoor shooting range !