Listen to your favorite music on the jobsite with your Power Box while charging your iPod - without cables, plugs or wires. Protected docking case has unique inserts to guard any size iPod from shock and movement. More than just a case - it's also dust and weather resistant. Attaches within Power Box protective roll cage. Dock plugs directly into Power Box's 12-volt auxiliary outlet and 3.5mm input jack. Charge iPod without extra wires or plugs. Installation is easy - simply remove and replace four screws.