PowerDuo combines our PowerBlock AC charger and PowerJolt auto charger in one convenient bundle. Keep the music going wherever you go. Includes a charge/sync cablefor iPhone and for iPod models with full-sized dock connector. Features & Specs:Features:PowerBlock's non-polarized blades fold flat for storage PowerBlock works with AC outlets from 100 to 240 volts PowerJolt 12 volt car charger works in your vehicle's accessory outlet PowerJolt uses an easily replaceable automotive fuse to protect from surges Both chargers feature LED indicators that change color for charging status at a glanc