The ergonomic design of the CSL vertical mouse frees your wrist from unnatural strain. With this mouse, your arm adopts a neutral position and your wrist is kept still. This prevents mouse or tennis elbow (RSI syndrome) and allows you to work relaxed even after hours. The wireless control via 2.4 GHz also contributes to comfortable working. No cables interfere with your arm movements and you can move the mouse freely and independently across the table.