9mm drivers deliver stunning sound for music and calls at any volume. The wireless Bluetooth hub clips to your shirt collar so that convenient music and call controls are easily within reach. Its magnetic clip securely stores the earbuds when theyâ€ re not in use. Three sizes of ear tips ensure you find the perfect fit. The Earbud Tips for Lifeâ„¢ limited lifetime warranty means if your earbud tips get worn or damaged, we will replace them.