Bose QuietComfort Ultra Earbuds Overview
Elite Audio, Adaptive Noise Cancellation, Personalized Fit — Now with Immersive Sound
Building on the success of the award-winning QuietComfort Earbuds II, the Bose QuietComfort Ultra Earbuds take audio performance to new heights. These true wireless in-ear headphones deliver premium sound, industry-leading noise cancellation, and a personalized listening experience with Bose’s CustomTune technology. With intuitive touch controls, an IPX4 water- and sweat-resistant design, and now immersive audio capabilities, these earbuds offer a refined and immersive way to enjoy your favorite content.
Enhanced with Snapdragon Sound for high-quality, low-latency Bluetooth connectivity, the earbuds also feature the aptX Adaptive codec for optimized audio performance, Google Fast Pair for quick Android setup, and a sleek new metallic finish—making them as stylish as they are powerful.
CustomTune Technology – Tailored Sound and Noise Cancellation
Every time you insert the earbuds, CustomTune plays a tone and analyzes your ear canal’s acoustic response. This data allows the earbuds to adapt audio and noise cancellation specifically to the shape of your ears—ensuring balanced, personalized sound and improved reduction of difficult noises like voices.
Immersive Audio – Spatial Sound That Moves With You
Bose Immersive Audio expands the soundstage, placing you virtually in the center of the music. Whether you're using streaming platforms or local playback, the effect makes your audio feel multidimensional. Powered by an onboard IMU and proprietary DSP, immersive audio offers two listening modes:
- Still Mode: Ideal for stationary listening—audio remains fixed in space.
- Motion Mode: Keeps the sound in front of you while you move—great for walking or commuting.
Advanced Noise Cancellation – Passive and Active Technologies Combined
The earbuds combine passive isolation (thanks to their design and silicone tips) with advanced active noise cancellation. External and internal microphones continuously analyze ambient sound and instantly generate counteracting signals, effectively silencing distractions in real-time.
Listening Modes – Audio Your Way
Choose from preset modes based on your environment and needs:
- Quiet: Full noise cancellation with optimized stereo sound.
- Aware: Transparency mode lets outside sounds in while keeping audio quality intact.
- Immersion: Full noise cancellation with immersive audio (Motion mode).
- Custom: Create up to 7 personalized modes via the Bose Music app.
Clear, Confident Calls
With an adaptive microphone system, your voice comes through clearly during calls—even in noisy or windy environments. Compatible with smartphone calls and VoIP apps like Zoom and FaceTime. The Self-Voice feature lets you hear your own voice naturally, so you don’t need to shout.
Comfort and Stability for All-Day Wear
Soft, umbrella-shaped eartips and contoured stability bands ensure a snug, secure fit. Mix and match tip and band sizes (including extra-small and extra-large, available separately) to find your ideal combination for comfort and acoustic seal.
Durable and Water-Resistant
Rated IPX4, these earbuds are resistant to sweat and splashes—perfect for workouts and light rain. The charging case interior is also designed to handle moisture from the earbuds, though the exterior should remain dry.
Touch Controls and App Personalization
Use simple taps and swipes to manage playback, adjust volume, switch modes, and access voice assistants. Customize EQ, controls, and listening modes through the Bose Music app for a tailored experience.
Single-Bud Use for Flexibility
Listen to music or take calls using just one earbud. The system automatically switches to the active bud if one is removed or runs out of battery.
Battery Life That Keeps Up
- Up to 6 hours of listening on a full charge.
- Charging case provides 3 additional full charges (totaling up to 24 hours).
- A 20-minute quick charge gives up to 2 hours of playback.
Tech Features That Elevate Your Experience
- Google Fast Pair: Instantly connects to Android devices (OS 6.0+) with a simple setup process.
- Snapdragon Sound: Delivers ultra-low latency, high-quality wireless audio using aptX Adaptive.
- aptX Adaptive Codec: Dynamically adjusts audio quality and latency based on connection strength—supporting even lossless audio and ideal for gaming or streaming.
Note: Snapdragon Sound is supported only on compatible Android devices certified for Snapdragon Sound.
