2GB 1 inch hard drive USB2.0 hi-speed (USB1.1 backward compatible) 265K 1.5inch TFT LCD show, pixel: 128x128 Supports ID3 tag Lyrics display and text viewer Supports MP3/MP4 /WMA/DRM WMA/ADPCM file. Line-in recording, Voice recording Built-in music library browsing method USB/ DC charging Supports multiple languages 4 mins anti-shock buffer 12 hours playback time* Firmware upgradeable Size: 52.5 x 79.2 x 17.7mm Weight: 85g