CSL - Optical wireless mouse - vertical design - ergonomic - prevents mouse arm and tennis elbow - gentle on the arm - 5 buttons

"CSL optical USB mouse | vertical design | especially gentle on the arms USB 2.0 | optical sensor | high sensitivity compared to other conventional optical mice / scanning rates 1000 - 1600dpi (freely selectable with dpi selector switch) / precise control on almost all surfaces 5 buttons & scroll wheel | left & right mouse button | forward & back button offers remarkable comfort when surfing the internet | easy-to-use buttons and scroll wheel | wireless Prevent a possible mouse arm or tennis arm (RSI syndrome) | ideal choice for surfers and individuals who work with the computer for long hours daily Improved handling compared to conventional mice | color: black | Notes: 2x AAA batteries are required for operation, not included in the delivery | The module is located in a compartment on the underside of the mouse upon delivery"