For more immersive listening, world-class noise cancellation and sound tailored to you, plus a design that feels so good to wear all combined for the ultimate earbud experience. Bose Immersive Audio spatializes what you're hearing by taking it out of your head and placing it in front of you no matter the content or source for more natural-sounding music than ever before. CustomTune technology analyzes your ears and adapts the sound and active noise cancelling to their unique shape. So you get sound that's all yours and world-class noise cancellation. Tune in and drill down into what you're doing with the world-class noise cancellation of Quiet Mode. Need to pay attention instead? With Aware Mode, you can hear your surroundings or have a conversation as if you weren't wearing earbuds at all. The Bose Fit Kit features nine combination of soft silicone eartips and stability bands to give you all-day comfort and a snug fit to reduce outside noises. The earbuds themselves provide up to 6 hours of listening time, (up to 4 with Immersive Audio) while the included case holds three additional charges for a total of up to 24 hours. Noise-rejecting microphones focus on the sound of your voice and filter out background noise for the clearest phone calls. Touch controls on each earbud gets you to your music faster. Change the volume, skip the track, cycle through modes all without taking out your phone. Advanced Bluetooth 5.3 keeps a strong connection for up to 30 feet. The Bose Music app gives you access to Custom Modes, Adjustable EQ settings, Bluetooth connections, battery life, shortcuts, and more. Snapdragon Sound Certification for Android makes for an even better listening experience for users of Android devices. Google Fast Pair makes connecting your headphones to an Android device easier than ever.