The way to listen - all day JBL Live 670NC headphones deliver powerful JBL Signature Sound in a comfortable on-ear headband style. When you're deep in your flow, True Adaptive Noise Cancelling with Smart Ambient technology keeps you free from distractions. Then, when you want to keep an ear open to the world around you, you can stay aware as you continue listening to your favorite playlist-or even have a conversation without taking the headphones off. Easily access your preferred voice assistant with a tapon the ear cup to cue up a song, text your friend, check the weather,and much more. You'll enjoy 65 hours (50 hours with BT+ANC on) ofmusic streaming. And if you still need more, a 5-minute speed chargegets you another 4 hours. The JBL Live 670NC can connect with twoBluetooth devices simultaneously, so you'll never have to miss a call,even if you're watching a movie on your tablet.