Its a Wall Charger...Its a Car Charger...Its a Dual device Charger...Its All of the Above. The PowerBullet 2x2 gives you all the power charging options you need for your iPod, iPhone or other USB devices. The PowerBullet 2x2 includes a foldable AC plug, a car charging plug, ane 2 USB ports. When the AC plug is extended, the PowerBullet 2x2 is a wall charger. With the cap removed, it is a car charger. Either way you can charge 2 devices at once (2 iPods or 2 iPhones, or an iPod and an iPhone, or any 2 devices that support USB charging). The green LED on the back of the PowerBullet 2x2 indicates that the unit is on. The PowerBullet 2x2 can be used at home, in your car and is the perfect charger for travel.