Display 3.5-inch (diagonal) Multi-Touch color LCD 320 by 480 pixels at 163 ppi Capacity 16GB, or 32GB flash drive1 Holds up to 1,750, 3,500, or 7,000 songs in 128-Kbps AAC format5 Holds up to 10,000, 20,000, or 25,000 iPod-viewable photos5 Holds up to 10 hours, 20 hours, or 40 hours of video5 Audio 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 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. Battery6 Built-in rechargeable lithium ion battery Music playback time: Up to 36 hours when fully charged Video playback time: Up to 6 hours when fully charged Input and Output Dock connector 3.5-mm stereo headphone jack Wireless3 Wi-Fi (802.11b/g) Nike + iPod support Maps location based service7 Comes with original box and accessories bought as a gift has a personal engraving on it.