Enjoy signature JBL sound and experience true active noise cancelling with the JBL Live 660NC Wireless Bluetooth Noise-Cancelling Headphones. The 40-hour battery life (50 hours with ANC switched off) will see you through the week and beyond - perfect for travelling or in the office. Keep unwanted noise at bay and stay focused on whatever you're doing thanks to JBL's Adaptive Noise Cancelling. Need to hear what's going on around you? Increase the volume of your surroundings with the Ambient Aware button. Or try TalkThru mode to talk with friends while still enjoying your tracks. Play your favourite tune, text your friends, check the weather and much more with the help of Google Assistant or Amazon Alexa. You can set your preferred voice assistant in the My JBL smartphone app.