EM05 NL Ergonomic Vertical Wireless Trackball Mouse

EM05 NL Ergonomic Vertical Wireless Trackball Mouse Equipped with a smooth trackball, move your cursor with your thumb movement instead of moving your wrist and arm. It will effectively reduce fatigue and strain for your wrist and arm. The vertical design of a 62-degree tilt end natural handshake can perfectly fit the palm of your hand, keeping your arms and and wrists in a relaxed state, so that you won't feel tired after a day of work.,EM05 NL Ergonomic Vertical Wireless Trackball Mouse Equipped with a smooth trackball, move your