1.Functional and Comfortable?: Takes a few minutes to be adjusted for but it’s easy to see (and more importantly, feel) how beneficial this is for your entire wrist. mouse has soft sturdy rubberized coating prevent/slow down any symptoms of stress and or carpal tunnel, say goodbye to wrist pain. 2.Price and ergonomics you just can’t beat it.Comfort, quality, cost? : Built-in rechargeable lithium battery instead of disposable batteries can last one month after fully charged. Charge the battery via the USB charging cable (included) 3.New take on an old well-constructed idea:Lovely mouse sideways design fits your hand like a glove, mouse cursor moves with precision and smoothness easy to use, easy to install (just plug it in and install the drivers) 4.has a good start for output?: adjustable dpi resolution (800/1200/1600) functional buttons,additional sleeping mode can save l energy efficient.And no button to wake it up at any time. 5.Super Quiet: Vertical Wireless Mouse, 2Year
