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 tap on 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) of music streaming. And if you still need more, a 5-minute speed charge gets you another four hours. The JBL Live 670NC can connect with two Bluetooth® devices simultaneously, so you’ll never have to miss a call, even if you’re watching a movie on your tablet. Along with powerful JBL Signature Sound, the 40mm drivers offer immersive JBL Spatial Sound that turns any stereo content from any device into virtual surround sound. Wirelessly stream high-quality sound even at lower bit rates with the help of the latest Bluetooth technology.  Audio Mode gets you the best available sound, while Video Mode makes sure the sound and visuals of your movies and games are always in sync. (*) Available via OTA update at a later stage. With four noise-sensing mics, True Adaptive Noise Cancelling means zero distractions, whether it's time to focus on your studies or get lost in the groove. And if you want to hear the world around you without removing your headphones, Smart Ambient sharpens the sounds of your surroundings