Abstract: According to the method, a flexible pad is first adhered to a base plate, and then a front cover made of a soft material is joined to cover the flexible pad. An additional rim section from the front cover is preserved and folded inward to cover and adhere to a back wall of the base plate. Finally, a back cover with a number of magnetic elements installed is joined to the base plate so that the rim section of the front cover is locked and concealed by the back cover. As described above, an earmuff is quickly assembled and could be quickly and detachably attached to and replaced later from the headset for cleaning, greatly enhancing the usability of the headset.