JBL Endurance DIVE headphones are built to keep up, no matter your routine! Guaranteed never to hurt or fall out, the headphones' sleek PowerHook™ design powers on automatically when you slip it behind your ear, while a secure wireless neckband keeps it in place. Leave your device behind with Dive’s 1 gigabyte memory storage (up to 200 music tracks), accessed with touch controls. And with 8 hours (max) of battery, Dive is ready to hit the pool, track, and gym all in one day.