The QC Ultra Gen 2 makes adjustments to the fit, battery, and design of the headphones, and adds a lot more in terms of audio modes and customization. While that sounds overwhelming, the majority of ...

You can charge your Bose headphones by connecting their USB cable from the headphones to a computer, wall charger, or power bank.

There's not a lot of differences between the old and new, but the Bose Quiet Comfort Ultra 2 sound better nearly everywhere.