CA-492 Portable Digital Docking Speakers... Perfect for any room in the house, the portable CA-492 digital docking speaker system works with most Apple iPods and the iPhone. Packing solid bass performance and notable highs, the CA-492 fills the room with balanced sound. Don't worry about plugging your iPod or iPhone into your computer, because the CA-492 conveniently charges most iPods and the iPhone when docked. With the CA-492's adaptable iPod and iPhone supporter, there's no need to keep those pesky iPod docking plates around. The provided fabric travel pouch and AA battery power option is perfect for users looking to take their dock on the go.