The JBL Tune 520BT headphones stream powerful JBL Pure Bass sound thanks to the latest 5.3 Bluetooth technology. These easy-to-use headphones can be recharged in just 5 minutes for an additional 3 hours of battery life. Download the free JBL Headphones app and customise your sound via EQ, while voice prompts guide you through the headphone features. Manage calls, sound and volume from the ear cup, thanks to the convenient button control. If a call comes in while you're watching a video on another device, the JBL Tune 520BT seamlessly switches to your mobile phone so you never miss a call. Lightweight and comfortable even after hours of use, the JBL Tune 520BT headphones store flat in your backpack to take you anywhere. The JBL Tune 520BT offers world-renowned JBL Pure Bass sound, found at the world's most famous venues. With the latest Bluetooth technology, you can stream high-quality sound wirelessly from your smartphone - without the clutter of wires. Download the free JBL Headphones app to EQ the sound to your taste. Voice prompts in your language guide you through the Tune 520BT's features.