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 5.3 ounces. And getting slightly thinner with each new generation. iPod continues to define the perfect digital music player for Mac and Windows. A musical dream come true, the fourth-generation iPod offers huge capacity, letting you easily slip up to 5,000 songs into your pocket. And enjoy it wherever you go. In the car. On the treadmill. At the office. Around the house.

• 20 GB model holds up to 5,000 songs; supports AAC (16 to 320 Kbps), MP3 (32 to 320 Kbps), MP3 VBR, Audible, AIFF, Apple Lossless and WAV
• Up to 12 hours battery life when fully charged (typically 4 hours); fast-charge in as little as 2 hours
• Mac OS X or Windows 2000 and XP compatible; FireWire and USB 2.0 interface for fastest digital transfer available
• Feature upgrades from previous version include new Click Wheel, slimmer case, and easier navigation
• Comes with earbud headphones, AC adapter, FireWire cable, and USB 2.0 cable (dock not included)

20 GB model holds up to 5,000 songs; supports AAC (16 to 320 Kbps), MP3 (32 to 320 Kbps), MP3 VBR, Audible, AIFF, Apple Lossless and WAVApple Computer