The JBL Tune 520BT headphones stream powerful JBL Pure Bass sound thanks to the latest 5.3 Bluetooth technology. This easy-to-use headphone can be recharged in just 5 minutes for an additional 3 hours of battery life. Download the free JBL Headphones app to customize your sound through the EQ while being guided through the headphone features with voice prompts. Manage calls, sound, and volume through the ear cup, thanks to the convenient button controls. When a call comes in while you’re watching a video on another device, the JBL Tune 520BT seamlessly switches to your mobile phone, ensuring you never miss a call. The JBL Tune 520BT headphones remain lightweight and comfortable even after hours of use and can be stored flat in your backpack for on-the-go convenience. The JBL Tune 520BT delivers the world-renowned JBL Pure Bass sound found in the most famous venues around the globe. With the latest Bluetooth technology, you can wirelessly stream high-quality sound from your smartphone—no tangled cables required. Download the free JBL Headphones app to tailor the sound to your taste using the EQ. Voice prompts in your language will guide you through the features of the Tune 520BT.