Up to 8 hours of wireless playback with Speed Charge battery
Bluetooth wireless allows you to stream high quality music for up to 8 hours without the worry of messy wires interfering with your workout. In just 10 minutes, you can power your headphones for up to an hour of use 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