If you want full freedom of movement, you should opt for a wireless mouse such as this one. This is a very straight-forward mouse with just three buttons.
From Amazon
A4 Tech A4TMYS46038 Mouse A4TECH V-Track
Ecprof
A4TMYS46038 - G3-200N-Ambidextrous-Optical-RF Wireless-1000 DPI-Black-