Adesso iMouse T50
If you want full freedom of movement, you should opt for a wireless mouse such as this one. While most computer mice have two buttons (and maybe a scroll wheel), this one has seven
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From Amazon
Adesso 2.4Ghz Wireless Programmable Ambidextrous Ergonomic Trackball Mouse, with, Black, iMouse T50
£58.28
Memory C
Adesso iMouse T50 Wireless Trackball Optical Programmable Mouse
£49.60
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