How to use the Twistlockâ„¢ on JBL Endurance SPRINT, JUMP, DIVE headphones

Check out how to use the Twistlockâ„¢ function on the JBL Endurance to get the most out of your headphones in terms of comfort and wearability. https://ift.tt/2E2oPc6 JBL October 03, 2018 at 05:55AM