Streaming wirelessly, the JBL Endurance RUNBT will give you the motivation you need to push harder with powerful JBL sound. With their FlipHook™ design, they adapt to an in-ear or behind-the-ear fit for added convenience. A comfortable combination of FlexSoft™ ear tips and TwistLock™ technology means these buds are guaranteed never to hurt or fall out. Thanks to IPX5 sweatproof, 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!