1) Ultra-thin, portable
2) Built-in audio Decode chipset, allow to transfer audio signal with USB cable
3) Built-in microphone, available for Skype, QQ, MSN etc
4) Portable speaker for notebook with USB connector
5) Compatible with all windows music player format, music software being controlled by the keys on speaker i.E.Forward/Backward, volume up and down.
6) Voltage:DC5V(USB-Plug in)
7) PC system:Win2000/XP/98
8) USB 2.0
9) Frequency Band:20Hz-20KHz
10) Mic sensitivity:45Db