HandShoe Cordless Left Handed Mouse. HandShoe KOV-LM2UL Ergonomic Left Handed Cordless Mouse. Cordless. Optical Sensor. Wireless Mouse with USB Connector. This mouse is clinically proven to alleviate pain and discomfort of repetitive stress injuries in the hand, wrist and arm associated with the use of traditional mice. Third button enables scrolling in some applications. Operate by moving entire mouse around on mousing surface. Vertical grip design keeps your hand and wrist at a neutral angle. Small size, for left-handed use only. Safety Data Sheet.