Is isolation different from noise cancellation?
Like earplugs, the isolating seal created by an in ear earphone blocks most frequencies of background noise and is a simple, natural form of noise reduction. In other words, the E Series blocks out unwanted ambient noise through isolation, rather than through electronics. In contrast, active noise cancellation headphones are generally larger, heavier, battery-driven headphones that generate tones to cancel out specific outside sounds. They typically target only selected frequencies and can even introduce additional sound “artifacts.” As a result, the natural isolating properties of a properly fitted sound isolating earphone rival the performance of even the most expensive active noise cancellation alternatives.
