JBL Tune 510BT JBL Pure Bass Sound It features the renowned JBL Pure Bass sound, which can be found in the most famous venues all around the world. Wireless Bluetooth 5.0 Streaming Wirelessly stream high-quality sound from your smartphone without messy cords. Up to 40H Battery Life and Speed Charge For long-lasting fun, listen wirelessly for 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. Multi-Point Connections Allows you to effortlessly switch from one Bluetooth device to another. You can simply switch from a video on your tablet to a call on your mobile phone, so that you'll never miss a call. Hands-Free Calls Easily control your sound and manage your calls from your headphones with the convenient buttons on the ear-cup. Lightweight, Comfortable and Foldable Design The lightweight materials and soft ear cushions with a padded headband make the headphones comfortable to wear for extended periods. The foldable design makes it convenient for you to carry your headphones anywhere and anytime you want music. 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.