Genius Netscroll 100 USB+PS/2 Optical 800DPI Ambidextrous Black,Silver mice

Netscroll 100 - USB+PS/2, Optical, 800dpi The setup is very easy --- all you need to do is plug it in.
With no mouse ball to get dirty, NetScroll 100 optical mouse makes your life easier---no mouse pad required and no cleaning necessary. With the 800dpi optical resolution, even if you use it for a long time, you will still feel comfortable with the NetScroll 100.

- Enhanced precision with 800dpi optical engine, eliminates moving parts and dust accumulation;
- Comfortable fit for either hand and for long-term use;
- The metallic-black color matches your PC environment.