Type: KB-102 Parameter：Music Format: MP3, WMA Paint: Alloy surface Capacity: 64M, 128M and 256M Playing time: Can continuously play music for about 900 minutes after fully charged Electronic disk: Mobile storage support Equalizer Mode: 5 different EQ modes (Jazz/Classic/Rock/POP/Normal) Volume: 32 step volume adjustment PC port: USB high-speed transit Battery: Rechargeable battery with USB port Battery: Charge Time: About 3 hours Battery Charge Current: About 140 ma Operating System: Windows 98/Me/2000/XP