A hearing aid and appertaining method of assembly are provided in which a receiver assembly is placed within a shell of the hearing aid, the receiver assembly comprising a left and right stud. The speaking valve further includes a cap that houses a valve member, which enables the speaking valve to act as a one-way check valve. When the composition, greatly diluted is injection- or blow-molded or extruded as film which contains more than 100 ppm of a 2,4-6-tri-substituted phenol and uniformly dispersed small amounts of solid micron-sized particles of interceptor, an alkali metal nitrite and a solid adjuvant to aid in dispersing the solid particles, the film is transparent and has a smooth surface.