16Before Using the ProductBefore Using the ProductCorrect posture to use the productExercise caution when adjusting the product angle or stand height. Otherwise, children's fingers or hands may become stuck and injured. Tilting the product excessively may cause it to fall and result in personalinjury.Do not place heavy objects on the product. Product failure or personal injure may result.!Use 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 slightlydownward at the screen.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 ofyour 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 ormore, your heels attached to the floor, and your arms lower than your heart.