These Bluetooth headphones have a 40-mm liquid crystal polymer driver and a proprietary HD noise-cancelling processor to ensure that outside noise doesn't interfere with your music. A built-in mic and Google Assistant enables you to cue music just by pressing a button and asking, when the headphones are paired with an iPhone or Android device. Features: • NFC-ready • 30-hour battery life • 10-minute quick charge for five hours of listening • In-line volume control jack