GiftU corporate gift expert, provides customised USB drive business gift set, guaranteed imported chips, small order welcome, 10 days production 

- Wireless to extend your working distance
- Precise Optical Technology, movement can be detacted in near all service
- Plug and Play
- Elegance design
- Scroll Wheel for Internet surfing
- Resolutions : 800 dpi
- Operation Distance : approx. 1.5 meters
- Batteries : AAA X 2
- Interface : USB
- Compatible with Windows98, 2000, ME, XP ,VISTA or Mac OS 10.0