The Tune 660NC wireless headphones feature the renowned JBL Pure Bass sound, which can be found in the world's most famous venues. With active noise cancellation, you can keep the noise out and enjoy your music. You can stream wirelessly from your device and even switch between two devices so you don't miss a call with Wireless Bluetooth 5.0 Streaming. Listen wirelessly for 44 hours with active noise cancellation for all-day enjoyment. Alternatively, you can use BT only for up to 55 hours. Get an extra 2 hours of battery life with just a 5-minute charge using the convenient USB Type-C cable. Enjoy indefinitely in wired mode with the included detachable cable. With the convenient buttons and mic on the ear-cup, you can easily control your sound and manage your calls from your headphones. Alternatively, use the ear-cup button to quickly access your device's voice assistant.