Incorporating the fabulous Apple Click Wheel that was first introduced on iPod mini. Offering up to 12 hours of battery life. Weighing in at just 5.6 ounces. And getting slightly thinner with each new generation. iPod continues to define the perfect digital music player for Mac and Windows. You can now purchase a 20GB iPod for $299. Or a 40GB iPod for $399.

A musical dream come true, the fourth-generation iPod offers huge capacity, letting you easily slip up to 10,000(1) songs into your pocket. And enjoy it wherever you go. In the car. On the treadmill. At the office. Around the house.

A Click in the Right Direction
Though ease of use has always been the hallmark of iPod, we believe in constantly moving perfection forward. So iPod now incorporates the same touch-sensitive Apple Click Wheel that debuted on iPod mini. Without lifting that trusty thumb of yours from the wheel, you can easily select playlists, scroll through thousands of songs, and start the music playing. Want that song to play from the beginning again? A single click will do the trick.

Do the iPod Shuffle
You can put the Apple Click Wheel to use the next time you want to set your music to shuffle. Right there on the main menu ? where it?s very easy to find ? you?ll find a new option ? Shuffle Songs. Everyone?s favorite option for mixing things up, Shuffle Songs randomly plays songs in a selected playlist or your entire music collection. You?ll never guess what?s coming up next, so you?re always surprised by startling juxtapositions ? like a melodic Coldplay song setting up an aria by Caball?.

Play Your Music for Hours?and Hours
And you can shuffle your way through a lot of songs now that iPod lets you play your music for up to 12 hours on a single battery charge.(2) Imagine: you could fly from New York to Paris and still have hours of listening time left over as you stroll the Champs Elys?e. While you?re on the move, iPod keeps you aware of its charge level, and when it?s time, iPod?s quick to recharge. Plug it into your computer or a handy wall socket (via the included power adapter), and you can fast-charge iPod in as little as 2 hours.

A Music Store at Your Fingertips
The perfect companion to iPod, iTunes lets you easily build and manage your digital music collection. Since the iTunes Music Store is built right in, you can browse through hundreds of thousands of songs and audiobooks until you find just what you?re looking for. Jazz, Reggae, Pop, Electronica, Hip Hop ? the iTunes Music Store has it all. And it?s open 24/7. All year long. In the US and Europe, too. On both the Mac and Windows PCs.

As for all of those CDs you already own, iTunes makes it easy to quickly transfer your favorite songs and albums. Just pop a CD into your Mac or PC, and click the Import button. You can import music in a variety of formats (such as MP3 or AAC) and at whatever quality level you?d prefer. You can even choose the new Apple Lossless encoder. Music encoded with that option offers sound quality indistinguishable from the original CDs at about half the file size of the original. And with FireWire and USB 2.0 support, you can transfer the music from an entire CD to iPod in just 5 seconds or less.

From Apple