Wave breaker can be used to treat standing wave or back wave in every speaker in your car, truck, boat, RV, office and home. Wave breaker is placed on the solid surface directly behind the speaker magnet and eliminates standing wave back wave from that speaker. Standing wave is created in every when the speaker cone moves in and out waves are created in two directions. The wave that moves out the front is called music. The wave that comes out the back of the speaker is called noise. This back wave reflects off the solid surface behind the speaker and bounces back to the front essentially throwing the speaker out of phase. When HushMat Wave Breaker is placed behind the speaker these back waves are absorbed and broken up in the wave breaker molecular structure. This prevents the bounce back and therefore prevents the distortion. Therefore you get all the music you paid for out of that speaker. It is simple to use. It cuts with scissors and then just peel and stick. HushMat is made from incredible adhesive technology makes this product a very simple install. HushMat is the only OEM specified and approved sound deadening and thermal insulating material available to the automotive aftermarket.