The JBL Endurance JUMP headphones are your faithful companion when you want to take your workout to a whole new level. These earphones, which are guaranteed never to cause pain or fall out, give you full power - immediately. Slide over the PowerHook and it turns on automatically. Move freely with the wireless neckband and TwistLock earplugs. Resist the elements with IPX7 waterproofing and 8 hours battery life. And if that's not enough: Get ready in just a few minutes with the practical Speed ChargeAkku.