Streaming wirelessly, the JBL Endurance RUNBT will get you the motivation you need to push harder with powerful JBL sound. With their Flip Hook design, they adapt to an in-ear or behind-the-ear fit for added convenience. A comfortable combination of Flex Soft ear tips and Twist Lock technology means these buds are guaranteed never to hurt or fall out. Thanks to IPX5 sweat proof, JBL Endurance RUNBT headphones keep up with your every step so sweat or rain will not ruin your workout. With a playback of 6 hours, the JBL Endurance RUNBT feature an in-line microphone and remote for hands-free control of sound and calls. The magnetic buds secure your Endurance RUNBT conveniently around your neck while not in use. Enjoy your workout!