Patented shape supports your hand in an upright neutral posture that helps avoid forearm twisting. Design and easy-to-reach, programmable buttons. Extra wide lip along bottom edge prevents the last finger from rubbing the desk. Adjustable speed with speed indicators. 2.4 GHz optical technology with USB receiver. Sold by each.

• Wireless, small size right-handed, black/brown
• Brand Name: Evoluent