With the adoption of the 800 CPI resolution optical location techniques.
*The applying of the separate audio chip enables the timber like
the VOIP. (It also supports plug and play, no necessary for the external power supply and sound card.)
*The C-media audio decode and encode chip inside make the speaker and microphone available
*USB V2.0/1.1 Link
*Material: ABS
*Unit size: 9*4.6*2.5CM