Hold down the button for about a second to turn it on then cycle through each setting with a quick click of the same button. From the gentlest low setting to the toe-curling high setting you will be amazed at the amount of power we have managed to pack into such a compact design. One you are finished simply hold down the button for two seconds to turn it off. It also includes a storage box lined with red satin to pamper you Muze when not in use.