PS/2 4D Finger Mouse with Track Ball, Black

4D space mouse. No table top required. Never hunt for "mouse space" again! Use this newly invented alternative to standard mice or trackballs instead. The ergonomic design of this 3-button mouse/trackball combinations is ideal for home, office, or the mobile traveler. A perfect "hands free" computer control device for multimedia presentations!

Features:

• elegant design
• for PS/2
• off-table, for free and comfortable operation
• avoiding eye fatigue and radiation harm
• compatible with windows 95/98 and windows NT
• can be operated in various ways, avoiding harm to palm joint or muscle
• user doesn't have to sit close to the monitor by using this track mouse
• can control the cross coordinates sensitively, simply with the thumb
• all products are patented and pending in EPC, JAP, PRC, ROC, USA and other countries
• color: black