Bose's John Rule emphasizes that It can be not merely the circuitry doing the do the job, although. He states, "Passive noise reduction also plays a part in headphone efficiency. once you put an earcup over your ear or https://susanwmrn839591.blogdigy.com/5-simple-statements-about-noise-cancelling-over-ear-headphones-with-mic-explained-43395607