You can choose how to wear your JBL Tune Flex. With these fully wireless earbuds, you can choose between an open and closed design, so you can choose how much ambient noise you hear. With an open design, you hear more of your surroundings, and with a closed design, you hear less. If you choose a closed design, you can turn on noise canceling. This technology mutes ambient noise and white noise. This way, you don't have to raise the volume too much in a noisy room. In the JBL Headphones app, you can customize the sound reproduction according to your style.