• CustomTune for premium sound
  • Our best in-ear noise cancelling
  • A fit that won’t quit
  • Up to 6 hours¹
  • Spatialized Bose Immersive Audio
  • Clearer calls than ever
  • Wireless charging case
  • Customize with the Bose app
New

Bose QuietComfort Ultra Earbuds (2nd Gen)

4.8 out of 5 Customer Rating
When music means everything, there’s the next-gen QuietComfort Ultra Earbuds. Because every listen deserves the premium, personalised audio of CustomTune tech, our best in-ear noise cancellation, and the comfortable fit of our best earbuds. So you get a heart-stopping experience every time you press play.
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Price is:  $379.00

90-day risk-free trial
  • CustomTune for premium sound
  • Our best in-ear noise cancelling
  • A fit that won’t quit
  • Up to 6 hours¹
  • Spatialized Bose Immersive Audio
  • Clearer calls than ever
  • Wireless charging case
  • Customize with the Bose app
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Bose QuietComfort Ultra Earbuds (2nd Gen)
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Price is:  $379.00

Product details

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What’s in the Box
  • 2 Bose QuietComfort Ultra Earbuds (2nd Gen)
  • Bose Fit Kit:
  • 3 pairs of eartips (small, medium, large)
  • 3 pairs of stability bands
  • (small, medium, large)
  • Wireless charging case
  • USB-C® (A to C) cable (12")
Headphone Fit In Ear
Microphones Built-in Microphone
Noise-Cancelling Yes
Noise Control Type Adjustable Noise Cancelling
Water-Resistant IPX4
Maximum Talk Time 4
Bud Single 3.0 cm H x 1.24 cm W x 2.49 cm D (0.01 kg)
Case 6.6 cm H x 5.97 cm W x 2.69 cm D (0.06 kg)
Product Material Plastic (PC-ABS), Silicone, Metal
Rechargeable Yes
Battery Life 6 hours
Battery Charge Time 2 hours
Charging Accessory included Yes
Charging Interface(s) USB C PORT
Wireless Connectivity A2DP Bluetooth Audio Streaming, HFP Bluetooth
Bluetooth Version 5.3
Bluetooth Range 30'
Bose App Bose App

QuietComfort Ultra Earbuds (2nd Gen) offer all the same features as their predecessor, QuietComfort Ultra Earbuds, plus:

  • Improved call quality through AI-based background noise suppression
  • Wireless charging
  • Improved ActiveSense (adaptive noise cancellation) technology
  • Case battery level reporting in the Bose app
  • Option to disable touch controls via the Bose app

ActiveSense is a type of adaptive Aware Mode that listens for very loud environmental sounds and selectively applies noise cancellation appropriate for both the loudness and duration of the detected sound. This way, you can remain aware of your surroundings, without having your music drowned out by interruptions like passing vehicles and loud appliance motor noises, such as a coffee grinder or blender. With this update of ActiveSense, the experience is refined so the changes in noise cancellation levels are less noticeable, contributing to an overall smoother adaptive Aware Mode experience. ActiveSense can be enabled and disabled in the Aware Mode setting.

Immersive Audio allows you to hear audio as if it were coming from beyond your QuietComfort Ultra Earbuds (2nd Gen), thereby allowing for a more spacious, natural listening experience. Your music and other audio will have a wide sound stage in front and to the sides, just as if you were listening to a pair of stereo speakers and seated at the sweet spot between them.

Bose CustomTune audio calibration is a proprietary Bose technology that optimizes the audio playback you hear based on the unique physical properties of your ear and ear canal. It works by playing a specially designed calibration tone as the welcome chime, each time you power on the earbuds while wearing them. It then measures how the shape of your ear uniquely modifies that sound. The earbuds use that information to adjust their sound to your ears, creating a more balanced, authentic audio experience.

Bose QuietComfort Ultra Earbuds (2nd Gen) utilize both passive and active noise reduction technologies. Passive noise reduction is similar to when you wear earplugs; there is a physical blockage preventing some of the sound from entering your ear. This is achieved through the earbud design with materials, such as silicone eartips, and the acoustic seal created by having a proper fit. For active noise cancellation, your earbuds use sophisticated proprietary electronics with microphones both inside and outside the earbuds. The electronics system senses the sound in almost any environment and then measures, compares, and reacts—instant by instant—to produce an opposing cancellation signal.

The left and right earbud surfaces are the same, but the controls vary depending on whether you are listening to audio or on a phone call.

When listening to audio:

  • Swipe up or down for volume control
  • Tap once to play or pause content
  • Tap twice in quick succession to skip forward
  • Tap three times in quick succession to skip back
  • Press and hold the earbud surface to access a favourite listening mode, and release when the desired mode is announced. The default shortcut function on both buds is to cycle through three listening modes:
    • Quiet Mode (full noise cancelling)
    • Aware Mode (full audio transparency to hear outside sound)
    • Immersion (full noise cancellation with Immersive Audio)
  • You can create additional modes or remove modes you don’t want using the Bose app.


For phone calls:

  • Swipe up or down for volume control
  • Tap once to accept an incoming call; if you are already on a call, and a second call is coming in, tap once to accept the second call and place the first call on hold
  • Tap twice in quick succession to decline a call, to end a call already in progress, or to decline a second incoming call while you’re already on a call

Yes. You can use a compatible third-party wireless charger (not provided) to charge the case. For best results, center the button (located on the back of the case) on the wireless charging pad. The charging case LED will glow solid amber to indicate the case is centred correctly and has begun charging.

A proper fit is critical to ensure the best audio performance and noise cancellation; an eartip with a loose or leaky seal can result in lower performance. The guide in the Bose app helps illustrate how to change out eartips and stability bands to try different sizes. After a comfortable fit is achieved, try the Earbud Seal Test located in the settings menu to ensure you are getting the best noise cancellation and listening experience. With a good seal, CustomTune technology ensures listeners are getting the best noise cancellation and audio performance.

If you find that none of the provided eartips and stability bands meet your needs, you may need alternate sizes. Extra Small and Extra Large eartips and sizes 0 and 4 stability bands are available online or through Bose Customer Service.

Yes. You can use either the left or right earbud independently for listening to audio or for phone calls. Controls on your bud will remain as when you are using both buds, and any shortcuts you have set will remain as you have set them. For optimal noise cancelling performance, both buds should be used together.
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Available on Google Play and the Apple Store

Owner’s guide
Quick start guide

The best. Now even better.

Feel all the feels every time you listen, because each song deserves premium audio, world-class noise cancellation, and the best earbud experience.
Woman wearing Bose QuietComfort Ultra Earbuds (2nd Gen) outside.

Our quietest in-ear noise cancelling

Bose QuietComfort Ultra Earbuds (2nd Gen)

In Quiet Mode there are no distractions—just music. Aware Mode lets you hear what’s around you, while ActiveSense tech still smooths spikes in unwanted noise.

Listen like only you can

Get world-class noise cancellation and sound performance tuned to your ears’ unique shape. The result? Bigger goosebumps and more chills every time you press play.

Learn more >

Bose Immersive Audio—the realest feels

Try what it feels like to have what you’re hearing spatialized, taken out of your head, and placed beyond your earbuds. It’s like always listening from the acoustic sweet spot.

Fit? Check.

Nine combinations of eartips and stability bands means you can find a fit that lets you focus on the beat—not your buds.

The app makes it even easier

Breeze through setup, and personalize your earbuds in the Bose app. Create custom modes with a noise cancellation level of your choosing, access Adjustable EQ, pair with select Bose products, and get updates—always ready for the next song.


Download on the App Store or Google Play.

The Bose app on a smartphone displaying the Modes screen.

Features

Bose QuietComfort Ultra Earbuds (2nd Gen)
  • Premium, personalized audio
    CustomTune tech adapts the sound to the shape of your ears for the best audio performance for you.
  • World-class noise cancellation
    Choose Quiet Mode for our best in-ear noise cancelling, or Aware Mode to let in your surroundings.
  • All-day comfortable fit
    Soft silicone eartips and stability bands give you a snug, comfortable fit that won’t quit all day long.
  • Listen uninterrupted
    Multi-point connectivity lets you pair to multiple devices at once and switch between them effortlessly.
  • Now charge wirelessly
    Power up with the wireless charging case, and listen for up to 6 hours of play time (up to 4 with Immersive Audio).¹ The case itself holds up to three full charges.²
  • Customize with the Bose app
    Get to the music quicker with step-by-step setup, and make the earbuds totally yours with customizable EQ and shortcuts.

Why buy from Bose

1 Testing conducted by Bose in February 2025 using production-representative Bose QuietComfort Ultra Earbuds and a variety of music tracks using A2DP Bluetooth audio streaming at RSSI signal strength of 75 dBm. Volume set to playback loudness of 75 dB, 3-band EQ set, to zero in Quiet Mode (full noise cancellation). With Immersive Audio off, playback time was up to 6 hours before battery depletion. With Immersive Audio on, playback time was up to 4 hours before battery depletion. Battery life varies based on settings and usage.

2 Testing conducted by Bose in February 2025 by inserting production-representative Bose QuietComfort Ultra Earbuds with battery depleted (to the point of no audio playback) into a fully charged Bose QuietComfort Ultra Earbuds charging case and charging earbuds to 100%, then resuming audio playback until battery depletion. Testing resulted in three (3) complete charging cycles by the case, before a full charge was no longer possible.

3 Testing conducted by Bose in February 2025 using production-representative Bose QuietComfort Ultra Earbuds and Bose QuietComfort Ultra Earbuds charging case. Quick charge testing consisted of inserting earbuds with battery depleted (to the point of no audio playback) into a fully charged case and charging earbuds for 20 minutes, then resuming Bluetooth A2DP audio playback with volume set to loudness of 75 dB, 3-band EQ set to zero, in Quiet Mode (full noise cancellation) with Immersive Audio switched off, resulting in up to 2 hours playback time before battery depletion.

Time to achieve fully charged earbuds was determined by inserting earbuds with battery depleted (to the point of no audio playback) into a fully charged case and charging earbuds to 100% battery charge.


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QuietComfort Ultra Earbuds: Testing conducted by Bose in June 2023 using production-representative Bose QuietComfort Ultra Earbuds and a variety of music tracks using A2DP Bluetooth audio streaming at RSSI signal strength of 75 dB. Volume set to playback loudness of 75 dB, 3-band EQ set, to zero in Quiet Mode (full noise cancellation). With Immersive Audio off, playback time was up to 6 hours before battery depletion. With Immersive Audio on, playback time was up to 4 hours before battery depletion. Battery life varies based on settings and usage.