Let nothing stop your workout. Wireless and IPX7 waterproof, the JBL Endurance SPRINT headphones are always up for a run, and with Speed Charge, you can get an hour of listening time after charging the 8hr battery for just 10 minutes. Supremely comfortable with FlexSoftear tips and TwistLock technology, these secure fit buds were designed from the ground up to amplify your workout. Theyre guaranteed never to hurt or fall out, while touch controls let you easily manage music and MagHook lets you secure them conveniently close at hand when youre done using them. 8 Hours of Wireless Playback with Speed Charge Battery Bluetooth wireless allows you to stream high quality music without the worry of messy wires interfering with your workout. In just 10 minutes, you can power your headphones for an hour of use. MagHook Secure fit ear hook design provides ultimate stability during workout. When not in use, the magnetic hook provides a convenient storage solution for your headphones. Clip on your shirt or around your bag for easy management. Never Hurt. Never Fall Out. Thanks to TwistLock and FlexSoft technologies, these headphones are lightweight and ergonomically built to ensure comfort and stability no matter the workout. Waterproof Featuring IPX7, the JBL Endurance SPRINT are designed to be used while swimming and in all weather or sport conditions. Durable and made to last, no matter the elements. Product highlights Wireless Waterproof in-ear JBL headphones IPX7 Waterproof rating The Maghook keeps your headphones stable and provides convenient storage Quick charge battery -- 10 minutes of charging gives you 1 hour of playback 8 hours of continuous music playback 10 mm Dynamic driver delivers clear and powerful sound Frequency Response: 20Hz - 20 kHz Touch controls allow you to answer your phone and control your music Built-in mic lets you talk on your phone