Meizu Slim 4 GB Video MP3/MP4 Player (Black) Sleek, durable player is designed to handle most music formats, as well as AVI video files and photos All-aluminum body, intuitive user interface, and 320 x 240 color LCD that displays 262,000 colors Rechargeable Lithium-Ion battery provides up to 36 hours of music playback High-speed USB 2.0 for fast data transfers; FM stereo radio function and voice recorder Measures 3.07 x 1.83 x 0.28 inches / 78 x 46.5 x 7.3 mm (W x H x D); weighs 1.69 ounces / 48 grams