•When using a mouse, trackball, stylus and graphics tablet, or other input device, position it as close to the keyboard as possible, and keep it at the same level so you do not have to stretch while using it.
•Use a good quality mouse pad to enable the mouse to work most effectively and reduce unnecessary hand and wrist movements.
•Be sure to keep your mouse and trackball clean. Regular removal of accumulated dust and dirt helps ensure proper tracking and reduces unnecessary hand and wrist motions.
Headphones and Speakers
Listening to loud sounds for prolonged periods may permanently damage your hearing. To avoid discomfort from unexpected noise, always turn down the volume before connecting headphones or speakers to your HP equipment.
When you put on the headphones, slowly increase the volume until you find a comfortable listening level, then leave the volume control in that position.
20 Getting Started