Specifications:
Ergonomically design, ease the harm of palm joint or muscle for long-time using mouse
Button: 4 buttons in default / 1 scroll wheel ( middle button )
2000 DPI resolution available
For home or office use, plug and play
The cable length: 1.6m
Operation distance: 10m
Hand dimensions: 180mm
Wowpen 5D vertical mouse
$20.00
5D 2.4GHz Wired USB Vertical Optical Mouse BLACK
This is a truly ergonomic mouse, vertical design, natural stretch of the wrist, arched back combined. With curved mouse ring design, contoured to hand in a neutral posture, to reduce hand fatigue.