2 combo 1,optical mouse & multimedia speaker
Take up the space is little, comfortable feeling
Long life, save the space and easy control
Built-in high quality sound speaker and amplifier
Enjoy the clear and sweetness music just need clike the mouse keystoke freely
* 3D Music Optical Mouse
* 800 DPI
* Stylish Design
* Keystroke Life : 3 million
* Roller Life : 1 million
* Compatible Windows 95/98/2000/ME/XP/VISTA