eKeep music going with up to 20 h of long-lasting battery,Your headphones sync with your smartphone. Get message alerts and receive incoming calls with vibration notification,Stream effortlessly with One-touch listening over BLUETOOTH®. Simply tap your device on the NFC logo,The behind-the-neck design is shaped for comfortable, all-day listening,Use the buttons to play, stop, or skip through tracks and adjust the volume. You can also push them to activate your smartphone's voice assistant features or make hands-free calls