Window Plugs are portable free hanging window covers custom cut to the cavity size of a window for a soundproof window treatment.  These acoustical curtains help block noise from coming through your windows.   Simply hang them vertically from your wall above your window via the grommets across the top of the sound control curtain.    Your edges have velcroed seams that affix direct to the walls for a tight seal for sound insulation.   Window Plugs are ideal window soundproofing treatments for street traffic noise, loud neighbors, garage bands or a drum room.    Roll up and store when not needed.   The facing of these sound barrier acoustic blankets are finished with 48 decorative cloth color options designed for aesthetic soundproof windows.