12Correct posture to use the productUse the product in the correct posture as follows:• Straighten your back.• Allow a distance of 45 to 50cm between your eye and the screen, and look slightly downward at thescreen. Keep your eyes directly in front of the screen.• Adjust the angle so light does not reflect on the screen.• Keep your forearms perpendicular to your upper arms and level with the back of your hands.• Keep your elbows at about a right angle.• Adjust the height of the product so you can keep your knees bent at 90 degrees or more, your heelsattached to the floor, and your arms lower than your heart.Tilting the productThe product can be tilted according to the user's preference. At some angles, light may reflect due to anexternal light source. It is recommended to use the product upright to minimize reflection. The touchedlocation may not be accurate and is dependent on the user's eye level.― An accurate touch position can be obtained if your eye is level with the touched location on thescreen.