Studiophonic Hearos 618 Gold 20 Series In-Ear Speakers (Discontinued by Manufacturer) Combines advanced microtechnology with effective noise reduction Unique direct brain connection for accurate and powerful sound Soft ear tips reduce up to 20 decibels to help create a noise free environment Compact and featherlight For optimum high fidelity sound and noise reducing performance, the in-ear speakers must, without exception, be properly inserted and sealed in each ear canal. Easy instructions included.