1. there are liquid mouse, wireless mouse,   and seven color flashing mouse

2. High resolution of 800DPI.
3. Ergonomic design with good thumb rest.
4. Free 360-degree use within 1.5m radius.
5. Compatiable with Windows 98 / ME / 2000 / NT / XP.
6. Connection port: USB / U+P.
7. Different colors available.