Detailed Specifications Memory Total Included Memory: 60 GB Storage Media Supported: Internal Hard Drive Audio Quality Format Supported: AAC, AIFF, MP3, WAV Features Display Type: Color LCD General Features: Alarm, Backlit LCD Display, Sleep Timer, Upgradable Firmware Additional Features: Calendar, Equalizer, Photo Viewer Playback Features: Repeat All, Repeat One, Shuffle Play Mode Interface System Connectivity: FireWire, USB Audio Output Connectors: Audio - Headphone Out (1/8" Mini) Battery Average Playback Time: 15 hour(s) Power Source: Rechargable Lithium Ion Battery Compatibility System Compatibility: Macintosh, PC Package Contents Included Components: AC Adapter, Headphones, USB Cable Batteries Included: Yes Dimensions Height: 4.1 in Width: 2.4 in Depth: 0.75 in Weight: 6.4 oz Warranty Warranty Information: 1 Year Limited Warranty Currency: USD Unit Price: 130 Quantity: Delivery: This item ships same day with FREE Shipping