Introduction
Experience a new dimension of sound with the Bose QuietComfort Ultra Bluetooth Earbuds. These state-of-the-art wireless earbuds are designed to deliver world-class noise cancellation, immersive spatial audio, and deep bass that brings your favorite music to life like never before. Whether you're commuting, working out, or just relaxing, these earbuds provide exceptional sound clarity, customizable comfort, and advanced Bluetooth connectivity.
What's in the Box
- Bose QuietComfort Ultra Wireless Noise Cancelling Earbuds
- 3x Ear Tips & Stability Bands (Small/Medium/Large)
- Charging Case
- 12" USB Type-A to USB Type-C Cable
- Green Extreme 20W 2-Port USB-C/USB-A Wall Charger

Image: Bose QuietComfort Ultra Earbuds in Lunar Blue with the included 20W USB-C/A wall charger and USB-C cable.
Key Features
- Immersive Spatial Audio: Dive into a richer, more realistic soundscape with spatial audio that places the sound directly in front of you for a more lifelike and engaging experience.
- World-Class Noise Cancellation: Bose’s CustomTune technology adapts the sound and ANC performance to the unique shape of your ears, delivering a personalized and uninterrupted listening experience.
- Three Listening Modes: Choose from Quiet Mode for total focus, Aware Mode to hear your surroundings, or Immersion Mode for full noise cancellation and spatial audio together.
- All-Day Comfort: Includes nine combinations of soft eartips and stability bands to give you a snug, custom fit that stays comfortable during long listening sessions.
- Long Battery Life: Enjoy up to 6 hours of continuous playback (up to 4 hours with Immersive Audio). A quick 20-minute charge provides up to 2 hours of extra playtime.
- Bluetooth Multipoint Connectivity: Easily switch between your phone, laptop, or tablet without missing a beat, thanks to seamless multipoint pairing.
- Clear Calls with Built-in Mic: Noise-rejecting microphones eliminate background noise so your voice comes through clearly during calls.
- Intuitive Touch Controls: Effortlessly adjust volume, change tracks, switch modes, and answer calls with simple touch gestures on the earbuds.
- One-Earbud Listening: Flexibly use one or both earbuds to listen to music or take calls — whatever works best for your needs.
- Custom Fit Options: Mix and match different sizes of eartips and stability bands for a secure and personalized fit.
- Bose App Support: Download the Bose Music app for access to the latest updates, new features, and customization tools to enhance your listening experience.
Setup
Initial Charge
Before first use, fully charge your Bose QuietComfort Ultra Earbuds. Place the earbuds into the charging case and connect the USB-C cable to the charging case and a power source. The indicator light on the case will show charging status.

Image: Bose QuietComfort Ultra Earbuds resting inside their charging case.
Pairing
To pair your earbuds with a device:
- Open the charging case.
- Ensure your device's Bluetooth is enabled.
- Select 'Bose QuietComfort Ultra Earbuds' from your device's Bluetooth list.
- For multipoint connectivity, repeat the process with a second device.
Finding Your Fit
The earbuds come with multiple sizes of soft eartips and stability bands. Experiment with different combinations to find the most secure and comfortable fit for your ears. A proper fit is crucial for optimal sound quality and noise cancellation.

Image: A selection of different sized eartips and stability bands for customizing the fit of the Bose QuietComfort Ultra Earbuds.
Operating the Earbuds
Listening Modes
The Bose QuietComfort Ultra Earbuds offer three distinct listening modes:
- Quiet Mode: Provides maximum noise cancellation for focused listening.
- Aware Mode: Allows you to hear your surroundings while still enjoying your audio.
- Immersion Mode: Combines full noise cancellation with immersive spatial audio for a deeply engaging experience.
Touch Controls
The earbuds feature intuitive touch controls on their surface. Refer to the Bose Music app for detailed customization options for these controls, including:
- Adjusting volume
- Changing tracks
- Switching listening modes
- Answering/ending calls
Single Earbud Use
You can use either the left or right earbud independently for music playback or calls. Simply remove one earbud from the case and leave the other in, or put it away.
Maintenance
Cleaning
Regularly clean your earbuds and charging case to maintain optimal performance. Use a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the charging contacts on both the earbuds and case are free of debris.
Storage
When not in use, store the earbuds in their charging case to protect them and ensure they remain charged. Avoid exposing the earbuds to extreme temperatures or humidity.
Troubleshooting
If you encounter issues with your Bose QuietComfort Ultra Earbuds, try the following steps:
- No Sound: Ensure earbuds are charged, properly connected to your device, and volume is up.
- Pairing Issues: Turn Bluetooth off and on on your device, or try forgetting the device and re-pairing.
- Noise Cancellation Not Effective: Check that the eartips and stability bands provide a snug seal. Adjust the fit if necessary.
- Earbuds Not Charging: Ensure the charging cable is securely connected and the charging contacts are clean.
- App Connectivity: Make sure the Bose Music app is updated to the latest version.
For more detailed troubleshooting, refer to the Bose Music app or the official Bose support website.
Specifications
| Model Name | QuietComfort Ultra Earbuds |
| Brand | Bose |
| Color | Lunar Blue |
| Connectivity Technology | Wireless (Bluetooth 5.3) |
| Earbud Battery Life | Up to 6 hours (4 hours with Immersive Audio) |
| Charging Case Battery Life | Up to 12 hours additional charge |
| Quick Charge | 20-minute charge for 2 hours of playtime |
| Water Resistance Level | Water Resistant |
| Bluetooth Range | 10 Meters |
| Control Type | Touch, App Control |
| Ear Placement | In Ear |
| UPC | 192223275140 |
Warranty and Support
For warranty information, product registration, and additional support resources, please visit the official Bose website or contact Bose customer service. Keep your proof of purchase for warranty claims.
You can also find more information and updates through the Bose Store on Amazon.







