Vertical Ergonomic Optical Mouse - 3D Wireless USB Optical Mouse Mice 1000 DPI - Right Hand - 1 Year Warranty (Wireless) This mouse is a perfect showcase of comfort and simplicity Easy to use buttons: 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 This special design makes your hand on a horizontal position,it helps to relieve strain on your forearm Standard USB connection; Nice appearance, perfect blend of shiny and a really nice scroll for better control