Accompanying USB Cable is retractable to make it small and portable.Color is available in Black and White to coordinate with the color of MobileBattery.
The most existing batteries could not be recharged at the same time when charging iPod/iPhone. This means the cable, the charger, and the USB port is needed for each of them. To make this easy, MobileBattery is programmed to use only one cable to charge iPod/iPhone. All you need is MobileBattery and the USB Cable in the kit, no USB-Dock Cable.
It is also programed that iPod/iPhone is the first to be charged in ordet to save charging time.