hand-held 2.4ghz wireless optical mouse (sc-mhw-3100)

1.Hand-held Trackball Wireless Optical Mouse,
With an elongated body and smooth optical trackball technology, this mouse provides maximum comfort. This Off-table design consolidates fashion and technology and a new way to control mouse. No limitation of space .Fingertip-based controls allow for quick and accurate movements:

2. Main Features:
New idea; Ergonomic Design;
Off-table, for free and comfortable operation;
Can be operated in various ways, avoiding harm to palm joint or muscle.
High accuracy and sensation;
Can be used on the surface as same as optical mouse.
User doesn't have to sit close to the monitor by using this track mouse;
Avoiding eye fatigue and radiation harm.
Can control the cross coordinates sensitively, simply with the thumb.
Compatible with windows 2000/XP/Vista/Mac OS X.
Resolution: table 1200dpi, trackball 1600dpi;
Adopt wireless USB 2.4GHz technology, 10 meter working radius