Logitech MouseMan User Manual page 3

Important Ergonomic Information
Some experts believe that using any mouse or trackball may cause
serious injury to hands, wrists, arms, neck, or back.
If you feel pain, numbness, or weakness in these areas, see a qualified
health professional.
TO REDUCE THE RISK OF INJURY, FOLLOW THESE PRECAUTIONS:
¢ Take frequent breaks. Get up and walk around several times every hour.
e Vary your tasks throughout the day.
¢ Keep your shoulders relaxed with your elbows at your side.
Position your keyboard and mouse so you do not have to reach.
e Adjust your chair and keyboard so your upper arms and wrists are
straight.
e Avoid resting your wrists on sharp edges.
For additional information that may reduce your risk of injury,
read the Comfort Guidelines on Logitech's Internet site:
www.logitech.com.