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CustomTune for premium sound
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Our best in-ear noise cancelling
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A fit that won’t quit
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Up to 6 hours¹
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Spatialized Bose Immersive Audio
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Clearer calls than ever
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Wireless charging case
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Customize with the Bose app
QuietComfort Ultra Earbuds (2nd Gen) + AirFly Pro 2 Set
Powered by AirFly Pro, QuietComfort Ultra Earbuds (2nd Gen) can now work their wireless magic in the sky, at the gym, and other places without Bluetooth® connectivity. The tiny portable transmitter plugs directly into a headphone jack and pairs seamlessly with our premium in-ear earbuds, allowing you to enjoy their iconic audio and world-class noise cancelling wirelessly. Connect another pair for shared listening with a friend or even use AirFly Pro 2 as an AUX IN adapter to stream your audio from your smartphone to car stereos, boats, or older speakers without Bluetooth. And with up to 25 hours of brag-worthy battery, AirFly Pro 2 makes your favorite earbuds more unstoppable than ever, outlasting even the longest commercial flights.
Current Price is: $308.99
Original Price is: $358.99
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CustomTune for premium sound
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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
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Customize with the Bose app
Current Price is: $308.99
Original Price is: $358.99
Product details
- 2 Bose QuietComfort Ultra Earbuds (2nd Gen)
- Bose Fit Kit:
- 3 pairs of eartips (S, M, L)
- 3 pairs of stability bands (1, 2, 3)
- Wireless charging case
- 12" USB-C® (A to C) cable
- Safety sheet
| 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 | 1.18" H x 0.49" W x 0.98" D (0.016 lb) |
| Case | 2.60" H x 2.35" W x 1.06" D (0.132 lb) |
| 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 |
| 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.
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 favorite 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 centered correctly and has begun charging.
- AirFy Pro 2
- USB-C to USB-A charging cable
- Travel pouch
- Keychain attachment
- Owner's manual
- Quick start guide
AirFly Bluetooth adapters work with a variety of Bluetooth speakers and headphones. Among these, Bose headphones and earbuds, AirPods, and almost all Bluetooth wireless headphones.
Also, any device with a 3.5mm audio jack to ensure compatibility with media playback. Note: AirFly does not support telephony. Learn more about setting up and using AirFly. >
Why buy from Bose
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90-day return policy
Try it for 90 days to make sure it’s right for you.
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Holiday price match promise
Shop confidently. We’ll match a lower price through December 25, 2025.
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Complimentary shipping & returns
On all in-stock orders of $49 or more.
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My Bose perks
My Bose members receive welcome and birthday offers, exclusive experiences, and more.
QC Ultra Earbuds (2nd Gen) features
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In-ear cinema soundMake all your video content come to life in a whole new way with Cinema Mode. This new feature spatializes your audio while balancing background sounds and sound effects, giving you a theater-like experience in your earbuds.
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Cut through the noiseBe heard loud and clear with Bose's best call quality. Our SpeechClarity tech uses noise-rejecting mics to filter out background sounds and wind to focus on your voice.
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Premium, personalized audioCustomTune tech adapts the sound to the shape of your ears for the best audio performance for you.
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World-class noise cancellationChoose Quiet Mode for our best in-ear noise cancelling, or Aware Mode to let in your surroundings.
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Now charge wirelesslyPower 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
AirFly Pro 2 features
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Be free of cumbersome cordsUse AirFly Pro 2 to wirelessly transmit audio from in-flight entertainment, gym equipment, or any 3.5 mm audio jack to your Bose wireless headphones.
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25 hours of brag-worthy batteryWith up to 25 hours of battery power, AirFly Pro 2 will outlast even the longest commercial flights. Just plug AirFly Pro 2 into your seat’s headphone jack to listen with your wireless Bose noise cancelling headphones.
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Dual-device pairingAirFly Pro 2 allows you to connect two sets of wireless headphones simultaneously, making it ideal for sharing audio with a friend or seamlessly switching between devices.
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No Bluetooth? No problem.Use AirFly Pro 2 where there is no Bluetooth connection available to allow wired speakers/soundbars, rental cars, and boat sound systems to wirelessly receive audio from gaming devices, phones, or tablets.
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Send audio to AUX IN and stream music wirelesslyUse AirFly Pro 2 to send audio from your smartphone to a car stereo, boat, or an older non-Bluetooth speaker.
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 75dBm. Volume set to playback loudness of 75dB, 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 75dB, 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.