*Support MP3 player/WMA/WAV to broadcast the form *Ball pen, Memory pen, Recording pen, MP3 player pen *OS Windows 98, Se, Me, 2000, XP, Mac OS, Linux *Compatible Interface USB 1. 1/USB 2. 0 *Digitally records up to 9-10 hours Of voice data(128MB Memory) *USB data line, Install CDs, Rope earphone hang *128MB Memory, 256MB Memory, 512MB Memory *Charge time: About 2. 5 hours *The regenerated time in succession: About 8 hours