JBL Live 770NC headphones deliver powerful JBL Signature Sound in a comfortable over-ear headband style. When you’re deep in your flow, True Adaptive Noise Cancelling with Smart Ambient technology keeps you free from distractions. Or, if you want to keep an ear open to the world around you, you can even have a conversation without taking the headphones off. JBL Signature Sound and surround sound Bluetooth 5.3 with LE audio supported True Adaptive Noise Cancelling with Smart Ambient For long-lasting fun, listen wirelessly for up to 50 hours and recharge the battery in as little as 2 hours with the convenient Type-C USB cable. And if you’re in a hurry, a quick 5-minute recharge gives you 4 additional hours of music Take the headphones off, the music stops. Put it back on, the music starts again. It genuinely couldn’t be simpler Ask Alexa or Hey Google Multi-point connection Seamless connectivity with any device 2 beamforming microphones for calls Comfort-fit fabric headband and carrying pouch JBL Headphones App Personi-Fi 2.0 – The My JBL Headphones app personalizes your sound experience just for you. Just take the quick and easy hearing test and it automatically sets up a custom sound profile that’s ready to go every time you put on your headband. That’s it.