Wireless over-ear headphones with JBL Pure Bass sound JBL Tune 720BT headphones transmit powerful JBL Pure Bass sound thanks to the latest bluetooth 5.3 technology. Easy to use, these headphones provide up to 76 hours of pure enjoyment and up to 3 extra hours of battery with just 5 minutes of charge. Download the free JBL Headphones app and personalize your sound through the EQ, while voice announcements walk you through the headphone features. Manage calls, sound and volume from the phone thanks to convenient button controls. If a call is received while you are watching a video on another device, the JBL Tune 720BT switches directly to your phone, so you never miss a call. Lightweight and comfortable even after hours of use, the JBL Tune 720BT headphones are foldable to fit in your backpack and accompany it anywhere.