The electrical noise of the Xiaomi Book has been rigorously tested and is completely within the range of Xiaomi and national regulations. In the night or other extremely quiet environments, the human ear close to the keyboard or the back cover can occasionally hear a very slight electrical noise during the operation of the motherboard. This is a normal phenomenon, and will not affect your daily use. If the electrical noise is obvious and seriously affecting your normal use, please contact the service center for further inspection.
