Enjoy Endless Sound with Our Excellent MP3 Players Height: 3.6 inches (90.7 mm) Width: 1.5 inches (38.7 mm) Depth: 0.24 inch (6.2 mm) Weight: 1.28 ounces (36.4 grams)1   Accessibility Spoken menus allow listeners to hear many of the names of menus, song titles, and artists without viewing the screen. An alternative large font can make menus easier to read. high-resolution LCD display with adjustable contrast and backlight settings makes it easier to read in low light. Captions in video are displayed when they are present using legible, high-contrast white-on-black font.   Display 2.2-inch (diagonal) TFT display 1.3MP high definition    Audio Frequency response: 20Hz to 20,000Hz Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX Lossless, AIFF, and WAV User-configurable maximum volume limit Headphones  Earphones Frequency response: 20Hz to 20,000Hz Impedance: 32 ohms Includes: Player Earphones USB 2.0 cable Video Capture  H.264 VGA video, 640 by 480 pixels, up to 30 frames per second with AAC audio 15 real-time special effects: Sepia, Black and White, X-Ray, Film Grain, Thermal, Security Cam, Cyborg, Bulge, Kaleido, Motion Blur, Mirror, Light Tunnel, Dent, Stretch, and Twirl 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 External buttons and controls Hold switch Click Wheel Battery and Power: Built-in rechargeable lithium-ion battery Playback time Music playback time: Up to 3 hours when fully charged Video playback time: Up to 2hours when fully charged