Introducing the JBL Tune 520BT headphones! Experience powerful JBL Pure Bass sound powered by cutting-edge 5.3 BT technology. With up to 57 hours of playtime and an extra 3 hours from just a 5-minute charge, these headphones ensure non-stop enjoyment. Customize your sound with the free JBL Headphones App and enjoy seamless control with convenient button functions on the earcup. Stay connected effortlessly - even during video watching - thanks to automatic switching to your mobile device for incoming calls. These lightweight, foldable headphones are your perfect companion for on-the-go listening pleasure.