Keep the music going wherever you go, and charge at home or in your car. PowerDuo combines micro form-factor PowerBlock AC charger and PowerJolt 12 volt auto charger in one convenient bundle. Both chargers take up minimal space during use or while traveling. But don"t let the size fool you; each delivers a full 5 watts (1 amp) of fast charging power for your iPod or iPhone. Includes a charge cable for iPhone and dock connector iPod models.