98% Less Noise for Your Journey: The fully-upgraded noise cancelling system targets and blocks out a wider range of noises—from plane engines to crying babies. So wherever you go, you can enjoy your personal space. Make Every Space Your Own: Whether you're indoors, outdoors, commuting, or on a flight, Space Q45's adaptive noise cancelling will automatically select a suitable level to match your location. Also, use the app to choose 1 of 5 noise cancelling levels. Ideal for Traveling: 50 hours of playtime in noise cancelling mode will cover an around-the-world flight without needing to recharge. In normal mode, get up to 65 hours of playtime and if you are low on battery, charge for 5 minutes for 4 hours of playtime.