If you want full freedom of movement, you should opt for a wireless mouse such as this one. Instead of having just the conventional buttons, this mouse also has side buttons.
From Amazon
Razer Cobra Pro - Customizable Wireless Gaming Mouse Chroma RGB (10 Customizable Controls, 11-Zone Chroma Lighting, Focus Pro 30K Optical Sensor, HyperSpeed Wireless) Black
OnBuy
Razer Orochi V2 mouse Right-hand RF Wireless Optical 18000 DPI
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