Cherry Left Hand Ergonomic Wired Keyboard and Wireless Mouse Bundle CH810004This ergonomic wired keyboard and wireless mouse can reduce or eliminate shoulder tension or other unpleasant symptoms when working at the computer. Designed so that your arms assume a natural position, relieving the stress on your shoulders. The mouse allows a more natural position to prevent fewer wrist problems. Includes a KC 4500 ergonomic keyboard and an MW 4500 left hand mouse Ergonomic design promotes better hand and wrist positioning Wireless