The JBL Live 660NC wireless headphones feature 40mm drivers and a sound signature that can be found in the most famous venues all around the world. Keep the noise away and stay focused on the music with Adaptive Noise Cancelling of these Bluetooth headphones. The Ambient Aware technology allows you to safely walk busy streets by increasing ambient sounds, while with TalkThru music is lowered and speech is amplified so you can easily chat keeping your headphones on. Get help from your preferred voice assistant using your voice or with a tap on the earcup. Activate Nose Cancelling or Ambient Aware, check the battery life or power off your JBL Live 660NC simply with your voice. Use the all-new JBL App to easily set your preferred voice assistants. Stay in touch with your world by managing calls with the buttons on the ear-cup. The mic technology allows for perfect stereo calls. Rock on for up to 50 hours (or up to 40 hours with ANC and BT on). Then, stop for a quick 10-minute charge to get extra 4-hour fun. Android 6.0 or higher is required for full access to Alexa features when using this device