• NOTE: If headset is too tight we suggest placing them over a ball or something of similar size/shape. Leave undisturbed for at least 24 hours. Repeat if necessary. Please also try length adjustments of either earpiece until both sides best fit you.
• JBL PURE BASS SOUND: These wirelss headpones feature the renowned JBL Pure Bass sound, which can be found in the most famous venues all around the world.
• WIRELESS BLUETOOTH: These headphones stream wirelessly from your device and can even switch between two devices so that you don't miss a call.
• UP TO 40 HOURS BATTERY WITH SPEED CHARGE: For long-lasting fun, listen wirelessly for up to 40 hours and recharge the battery in as little as 2 hours with the convenient Type-C USB cable. A quick 5-minute recharge gives you 2 additional hours of music.
• MICROPHONE ON EAR CUP FOR HANDS-FREE CALLS: Easily control your sound and manage your calls from your headphones with the convenient buttons on the ear-cup.
• ASK SIRI OR HEY GOOGLE: Siri or Hey Google is just a button away: activate the voice assistant of your device by pushing the multi-function button.
• Featuring an adjustable headband the Tune 510BT are designed to fit nearly any head size comfortably

The JBL Tune 510BT headphones let you stream powerful JBL Pure Bass sound with no strings attached. Easy to use, these headphones provide up to 40 hours of pure pleasure and an extra 2 hours of battery with just 5 minutes of power with the USB-C charging cable. And if a call comes in while you are watching a video on another device, the JBL Tune 510BT seamlessly switches to your mobile. Bluetooth 5.0 enabled and designed to be comfortable, the JBL Tune 510BT headphones also allow you to connect to Siri or Google without using your mobile device. Available in multiple fresh colors and foldable for easy portability, the JBL Tune 510BT headphones are a grab ‘n go solution that helps you to inject music into every aspect of your busy life.