The HandshoeMouse Shift Mouse is a lightly slanted palm and finger supporting computer mouse that requires the least muscle activity in the hand. The ambidextrous Shift mouse can be easily switched from left to right, so that you can use the mouse with both hands alternating. With Bluetooth connectivity you can use the wireless mouse easily. The HandshoeMouse Shift will reduce the muscle activity in your hand and fingers allowing you to work more comfortably and ergonomically.