
Adjusting the massage intensity on your iReSt SL-A339 massage chair is simple. Here's how: First, access the massage information interface. Look for the 4D massage intensity adjustment feature. Next, use the "-" or "+" buttons associated with the 3D icon to modify the upper back manipulator's massage strength. You can choose from five different intensity levels to customize your massage. Remember, the massage intensity controls the pressure in a specific area, so adjust it to your preferred comfort level for an optimal massage experience with your iReSt SL-A339.


