Logic3 iStation3 iPod Speaker System (Black) Compact, portable speaker system designed for all "dockable" iPods Built-in docking station amplifies, charges, and syncs iPod Pair of full-range 1.18-inch neodymium drivers produce crisp sound Auxiliary input for older iPods, MP3 players, and other devices Runs on 4 AA batteries or AC power; measures 4.4 x 6.3 x 1.2 inches (W x H x D)