How to adjust umily bladeless fan without remote control

Control with a bladeless fan changer. Bladeless fan wind speed size can be adjusted at will, it is not like ordinary fans use buttons to control the size of the wind volume. So it is the most humanized fan, the traditional fan using the button gear speed to set the size and strength of the wind volume, lack of ideality of the wind volume size of the choice to use. Bladeless fan focuses on setting the size of the air volume and the strength of the innovative change in technology, the use of electrodeless varistors, rotary knob control the size of the air volume and the strength of the more idealized, humanized.