Quiet QurlMT products are the most exciting technology we’ve developed. This “Muffling Technology” is available on any Quiet Qurl product and adds a conformable bottom side muffler to our sound control mats. MT uses a high loft fabric that weights very little and compresses with a low amount of pressure.For more information contact us at 877-514-5336 or visit us at www.KeeneBuilding.com Muffling Technology