Anker® Ergonomic Optical USB Wired Vertical Mouse 1000 / 1600 DPI, 5 Buttons

Amazon.co.uk Price: £15.99 (as of 23/10/2021 23:41 PST- Details) & FREE Shipping.

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Scientific ergonomic design encourages healthy neutral “handshake” wrist and arm positions for smoother movement and less overall strain.
1000/1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces.