No more strain in the arm and wrist. Standard mice are not ergonomically optimal, as they twist the ulna and radius of the forearm when resting. This is where the vertical mouse comes in: it allows for a neutral hand position and relaxed long-term use. Your arm is placed in a comfortable, neutral position, and the hand is supported by the ergonomic design and non-slip surface. The mouse features a right and left button, a forward and back button for quick browsing, and a DPI switch for adjusting the sensitivity (1000 / 1600 DPI). Thanks to the optical sensor, the mouse works with the highest precision on almost any surface.