With the JBL Live Flex Blue, you can close yourself off from your surroundings whenever you want to. That's because these JBL earbuds have True Adaptive Noise Canceling. This ensures ambient noise gets reduced. Take calls and listen to music via your laptop thanks to multipoint pairing. This technology allows you to connect your earbuds to 2 devices at the same time. The earbuds automatically switch between these devices. Adjust your preferences in the JBL Headphones app. In the app, you can adjust the noise canceling and create your own personal listening profile with Personi-fi 2.0. The battery of the earbuds lasts 8 hours. With the fast charge function, you can charge your earbuds for 15 minutes and enjoy music for 4 hours.