Capacity: 128M, 256M, 512MB, 1G Color for Option: Silver, Blue, Red, etc. Features: - USB 2.0 Version - Super size OLED colorful display - Music format: MP3, WMA, WMV, WAV, ASF and etc. - ID-3 tag support with repeat, follow-read and contrast function - Built-in FM Radio - Super-long and VOX voice digital recording from mic - Digital voice recording: 36 hours with 128MB - EQ Mode: Natural, Rock, Pop, Classic, Jazz, Soft, Dbb - Play mode: repeat A-B and repeat track play controls, preview mode - Multi language support: English/ French/ German/ Italian/ Spanish/ Portuguese/ Swedish/ Czech/ Dutch/ Danmark/ Polish/ Russian/ Korean/ Japanese/ Chinese - Data storage: MP3/data file can be stored and transferred to other PC or MP3 player - Lithium rechargeable battery playing up to 8 hours - Tel. book: support 99 numbers - Operating system: Windows 98/Me/2000/XP ( driver needed for Win98 only) - Size: 59*31*13mm, weight: 31g