Size and weight

• Height: 4.1 inches (103.5 mm)
• Width:  2.4 inches (61.8 mm)
• Depth: 0.41 inch (10.5 mm)
• Weight: 4.9 ounces (140 grams)

Display

• 2.5-inch (diagonal) color LCD with LED backlight
• 320-by-240-pixel resolution at 163 pixels per inch

Capacity

• 160GB hard drive2
• Holds up to 40,000 songs in 128-Kbps AAC format3
• Holds up to 25,000 iPod-viewable photos4
• Holds up to 200 hours of video
• Stores data via USB hard drive

Audio

Frequency response: 20Hz to 20,000Hz

Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV

User-configurable maximum volume limit

Headphones

• Earphones
• Frequency response: 20Hz to 20,000Hz
• Impedance: 32 ohms

Video

H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Baseline Profile up to Level 3.0 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats

Input and output

• Dock connector
• 3.5-mm stereo headphone jack

Battery and Power

-Built-in rechargeable lithium-ion battery

-Playback time

 o Music playback time: Up to 36 hours when fully charged

 o Video playback time: Up to 6 hours when fully charged

      Audio: 30 hours. Video: 5 hours.

-Charging via USB to computer system or power adapter (sold separately)

  o Fast-charge time: about 2 hours (charges up to 80% of battery capacity)

   o Full-charge time: about 4 hours

Mac system requirements

• Mac computer with USB 2.0 port
• Mac OS X v10.4.11 or later
• iTunes 9 or later7

Windows system requirements

• PC with USB 2.0 port
• Windows Vista or Windows XP Home or Professional with Service Pack 3 or later
• iTunes 9 or later7