allows totally relaxed working. I use this mouse in combination with Gel Mouse Pad incl. Palmrest cushion. The mouse is very light, probably not suitable for power gamers. This mouse is designed for office work. I put my wrist on a gel cushion, cross intuitively in the optimum relaxed angle to the keyboard. The low weight of the mouse you have to control almost feel the PC with pure hand gesture. You forget all that you hold a mouse in Häden. No curved upwards Hangelenk, no unnatural inward turning of the wrist. Total relaxation just. This is possible really tiring, especially pain-free work on the PC for long periods. By modified form this mouse is available only for right-handers. Finally, an important note: The mouse did not connect initially, there was no reaction. Since I got the idea, yet to launch a final attempt with new batteries. And that was the problem. There are apparently already overlaid, cheap China batteries been settled. Small initial difficulties, about one looks away happy, if the super power of the device deployed so positive at the end.