Mfr Part Number: MA947LL/A,MA947C/A Features: Smaller than ever Remix and match Everything is easy Clip and go Capacity: 1GB (240 songs) Battery life: Upto 12 hours Ports: Stereo minijack Connectivity: USB through included dock Charge time: About 4 hours (2-hour fast charge to 80% capacity) Audio support: MP3 (8 to 320 Kbps), MP3 VBR, AAC (8 to 320 Kbps), Protected AAC (from iTunes Store, M4A, M4B, M4P), Audible (formats 2, 3, and 4), WAV, and AIFF Included accessories: Earphones, dock Requirements: USB 2.0 port; iTunes 7.0.2 or later; Windows XP Home or Professional Service Pack 2 or later, or Windows 2000 Service Pack 4; Mac OS X v10.3.9 or later Color: Pink Dimension: 1.62 x 1.07 x 0.41 inch / 41.2 x 27.3 x 10.53 mm Weight: 0.55 oz / 15.6 g