Apple Dock for Classic iPod 4th Gen (White) (Discontinued by Manufacturer) Compatibility: iPod 4G An elegant home base used for charging and synching with your computer or for connecting to your home audio system Provides a convenient and elegant home base for iPod on a desk or connected to a home stereo system Makes charging and syncing easier than ever Provides charging and syncing via FireWire or USB 2.0, and a stereo line-out for connection to power speakers or a stereo system