abcGoodefg 2.4G Wireless USB Handheld Finger Trackball Mouse (Black+Red)


Featureïš
1.2.4GHz Wireless connectivity with working distance within 32ft (10m)
2.Hold in hand or place on any surface
3.Plug and Play
4.Precise optical tracking
5.Scroll wheel with thumb control
6.USB Receiver
7. The power supply :AAA battery(not included)
8.Compatible with :Windows98/ 2000 / XP / VISTA / win 7/Linux、Unix/ Mac OS
9.Color:black

Package includes:
1 X wireless trackball mouse
1 X receiver