Apple iPod Nano 4GB, Silver

• 4GB flash drive (1GB = 1 billion bytes; actual formatted capacity less.)
• Holds up to 1,000 songs in 128-Kbps AAC format (Music capacity is based on 4 minutes per song and 128-Kbps AAC encoding; actual capacity varies by content)
• Holds up to 3,500 iPod-viewable photos (Photo capacity is based on iPod-viewable photos transferred from iTunes)
• Holds up to 4 hours of video (Video capacity based on H.264 1.5-Mbps video at 640-by-480 resolution combined with 128-Kbps audio; actual capacity varies by content)
• Stores data via USB flash drive

• 2-inch (diagonal) liquid crystal display with blue-white LED backlight
• 320-by-240-pixel resolution at 204 pixels per inch

• Skip-free playback
• Frequency response: 20Hz to 20,000Hz
• Audio formats supported: AAC (16 to 320 Kbps), Protected AAC (from iTunes Store), MP3 (16 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, and 4), Apple Lossless, AIFF, and WAV
• User-configurable maximum volume limit

• 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

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

• Mac computer with USB 2.0 port
• Mac OS X v10.4.8 or later
• iTunes 7.4 or later (iPod and iTunes are for legal or rightholder-authorized copying only. Don’t steal music.)

• PC with USB 2.0 port
• Windows Vista or Windows XP Home or Professional with Service Pack 2 or later
• iTunes 7.4 or later (iPod and iTunes are for legal or rightholder-authorized copying only. Don’t steal music )

• Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, and Turkish

• Operating temperature: 32° to 95° F (0° to 35° C)
• Nonoperating temperature: -4° to 113° F (-20° to 45° C)
• Relative humidity: 5% to 95% noncondensing
• Maximum operating altitude: 10,000 feet (3000 m)

• Dock connector
• 3.5-mm stereo headphone jack

• Built-in rechargeable lithium ion battery
• Playback time - Music playback time: Up to 24 hours when fully charged; Video playback time: Up to 5 hours when fully charged
• Charging via USB to computer system or power adapter (sold separately) - Fast-charge time: about 1.5 hours (charges up to 80% of battery capacity); Full-charge time: about 3 hours
• * Testing conducted by Apple in August 2007 using preproduction hardware and software. The playlist contained 358 unique audio tracks consisting of content imported from CDs using iTunes (128-Kbps AAC) and content purchased from the iTunes Store (128-Kbps AAC). Video content was purchased from the iTunes Store. Battery tests are conducted with specific iPod units; actual results may vary. Rechargeable batteries have a limited number of charge cycles and may eventually need to be replaced (see www.apple.com/support/ipod/service/battery). Battery life and number of charge cycles vary by use and settings. See www.apple.com/batteries for more information.

• 2.75 x 2.06 x 0.26 "

• 1.74 ounces