CHUYI Office Wireless 2.4ghz Vertical Optical Ergonomic Gaming Mouse for PC Computer Laptop Notebook for Right Hand (Black) Right hand vertical mouse, wireless mouse, no matter how the computer desk design, can be easily used Superior Ergonomic Design: All buttons are easily operable without contorting your fingers. The button force is light for easy clicking, but still firm enough to avoid accidental actuation 800 / 1200 / 1600DPI resolution optical tracking technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces Superior Ergonomic Design: Make your hand comfort, side of the custom button can be set up and down the page, improve operating speed, increase efficiency Compatibility: This comfortable ergonomic mouse is compatible with Mac OS X, Linux and all versions of Windows