Specialized Center Line Guard Stopper prevents the diaphragm of the earphones from falling within the ear canal and keeps your eartips centered for maximum sound quality and comfort. Studies show you can use the various sizes based on your activity and the amount of hold and isolation you would like. For example while resting a great hold is not needed like as in gym activities. Products are Brand New, Ready to Use and Sterilized using UV Light and 91% Alcohol following All Recommendations and Guidelines from the CDC and Government Agencies. Since the Items are for Personal Use, they wouldn't be returnable. But if you receive an item that is damaged or defective, please contact us and we will be able to further assist. Dear Customers, If you are unhappy with your purchase for whatever rea.
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