The main difference between noise isolation and noise cancellation is how they both works to reduce unwanted sounds. Noise isolation works by using materials to physically block outside noise, creating a barrier between your ears and the noise source. On the flip side, noise cancellation uses electronic tech to actively fight incoming noise. It does this by making special sound waves that “cancel out” the unwanted sounds. Noise isolation relies on materials, while noise cancellation needs electronic parts to get the job done.