Noise reduction earplugs are certainly not the like noise cancellation Earplugs. The Direct sound Severe Isolation Earplugs are actually a lot better categorized as noise reduction Earplugs considering that they do not make use of electronic devices to definitely terminate ambient noise. As an alternative, the Direct Sound Earplugs actually obstruct sound through mirroring the audio far from your ears while confining your ears in copyrighted sound isolating ear cups.