Results matter and when users have the perfect headphones there's nothing standing in-between them and their workout. 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. And if users thought a little sweat or rain was going to ruin a run think again. Thanks to IPX5 sweatproofing JBL Endurance RUN headphones keep up with every step while an in-line microphone and remote ensures users are never reaching into their pocket to answer calls.