JBL Live 660NC Wireless Noise Cancelling Over-Ear Headphones - Black JBL Signature Sound 40mm drivers and a sound signature that can be found in the most famous venues all around the world. Keep the noise out, or in. You choose. Keep the noise away and stay focused on the music with Adaptive Noise Cancelling. 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 just by using your voice. Get help from Hey Google or Alexa using your voice or with a tap on the earcup. Activate ANC or Ambient Aware, check the battery life or power off your JBL Live 660NC simply with your voice with Hey Google. Use the all-new JBL App to easily set your preferred voice assistants. Only supported on Android Android 6.0 or higher is required for full access to Alexa features when using this device.