QuietComfort Ultra Earbuds are the ultimate earbud experience. Breakthrough spatialized audio for more immersive listening makes your music feel realer than ever before - no matter the content or source. Bose Immersive Audio takes what you're hearing out of your head and places it in front of you for the most natural listening. And CustomTune technology takes it to another level by analyzing your ear's shape and adapting the sound and world-class noise cancellation so everything hits just as it should. The comfort is shaped to you, too. You get nine combinations of eartip and stability band sizes to find the best fit. And up to 6 hours of play time keeps your favs playing as long as you want to listen (up to 4 hours with Immersive Audio). Plus, the included case holds up to three additional charges. Connect to your devices with advanced Bluetooth 5.3 and keep track of what you have paired in the Bose Music app. It also walks you through setup, lets you customize a shortcut, and access Adjustable EQ settings. Available in Black, Moonstone Blue and White Smoke.Feel your music moreBreakthrough spatialized audio for more immersive listening that makes your music feel realer than ever before - no matter the content or source. World-class noise cancellation and sound tailored to you. And a design that feels so good to wear. Say less. (Listen more.)Immersive audio. Feels more realBose Immersive Audio pushes the boundary of what it means to listen. It spatializes what you're hearing by taking it out of your head and placing it in front of you - putting you in the acoustic sweet spot. Sound so real it's almost like you can reach out and touch it? Yes, please. Say hello to the most natural listening experience.World-class noise cancellation and sound shaped to youThe magic of CustomTune technology: it analyzes your ears and adapts the sound and active noise cancelling to their unique shape. The result? World-class noise cancellation and sound that's tailored to you. So you can dance harder, focus better, and hear your fav song like it's the first time all over again.Modes for how you want to listenWhen it's time to tune in and jam out, use Quiet Mode to tap into world-class noise cancellation. But sometimes you need to pay attention. That's why Aware Mode allows enough transparency to hear your surroundings or engage in conversation without taking out an earbud. Immersion Mode engages full noise cancellation with Immersive Audio turned on.High-quality earbuds for comfort and stabilityWhile they're designed for all ears, these earbuds are uniquely shaped to yours. And now it's easier to swap between nine potential combinations of eartips and stability bands to help you find the right fit. The soft, umbrella-shaped tips seal off the opening of your ear to reduce outside noises. And stability bands hug the contours of your ears for a snug fit.Go ahead, listen longer with up to 24 hours total play timeQC Ultra Earbuds themselves give you up to 6 hours of listening time (up to 4 with Immersive Audio) while the included case holds up to three additional full charges. And when you're short on time, pop the buds in the case and get up to 2 hours of music from just a 20-minute charge.Crystal-clear, natural-sounding phone callsNo more "huh?" when you're trying to just say "hello." Noise-rejecting mics focus on your voice and filter out background noise for the clearest calls. They'll play through both or a single earbud, whatever works for you.Swipe, tap, touch to get into the musicPlay or pause music, change the volume, and switch tracks with simple touch controls right on the earbuds themselves. You can even answer calls and cycle through modes, all without ever taking out your phone.Stay connected with advanced Bluetooth 5.3Advanced Bluetooth 5.3 offers a strong, continuous connection within 30 feet of your device.Control everything through the Bose Music appTake personalization even further in the Bose Music app by creating a Custom Mode (such as combining Aware Mode and Immersive Audio) or using Adjustable EQ settings to dial in the sound. Control bass, mid-range, and treble levels as you go. Or use the app to check battery life, customize a shortcut, and manage connected devices.Long Features• Breakthrough spatialized audio 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