Does not prevent pain in the wrist (carpal tunnel) but very soft to use. Warning: We can not do without a mouse pad with the mouse. The wireless is an illusion: it is sold with a wire to connect the USB key and the instrument of receipt of wifi (wire length = 50 cm and the size of the receiving device is equivalent to that of a mouse !!!). This is never shown in the pictures. Otherwise very sophisticated product with magnifying feature, etc ...