A little sweat or rain will not ruin your run anymore. Thanks to their sweatproof design, the JBL Endurance RUNBT 2 wired sports earphones will keep up with you every step, anytime. With their useful FlipHookTM design, they adapt to an in-ear or behind-the-ear fit for added convenience. A comfortable combination of FlexSoftTM ear tips and TwistLockTM technology means these buds are designed not to hurt or fall out. Also, an in-line microphone and remote will ensure you’re never reaching into your pocket to answer calls. Nothing is going to stop you from training.