Hear what you want, the way you want Industry-leading noise cancellation4 made even smarter, with personal and atmospheric pressure optimising that adjusts to your individual listening style and your altitude.2 Smart Listening by Adaptive Sound Control automatically adjusts to whatever you doSmart Listening by Adaptive Sound Control automatically detects your activity such as travelling, walking, and waiting, then adjusts ambient sound settings to you. You can customise them to your preferences with the Sony I Headphones Connect APP.Be in control of your listening. All day power and quick chargingKeep the music playing with long battery life and quick charging, giving 70 minutes of play after just 10 minutes of charge. 1000X Series become smarter with the Google Assistant5Industry-leading noise cancelling4 headphones is now optimized for the Google Assistant with an update6. Ask it questions. Tell it to do things. It’s your own personal Google, always ready to help.