No two ear canals are the same shape, which means no two people hear an identical pair of headphones identically. Bose QuietComfort Ultra Lunar Blue measures yours — CustomTune sends a tone into the ear at startup, listens to how it reflects back, and adjusts the audio to what your anatomy is doing to it.
Table of Contents
- CustomTune: Measured, Not Guessed
- Why It Also Improves the Noise Cancelling
- Personal Tuning on Top of Personal Tuning
- Who Lunar Blue Suits
- Daily Use and Battery
- Technical Specifications
- FAQ
QuietComfort Ultra Lunar Blue: CustomTune: Measured, Not Guessed
Every time you put the headphones on, a brief tone plays and the internal microphones capture the reflection from inside your ear. The shape of that reflection describes the acoustic space between the driver and your eardrum, and the headphone corrects for it.
The practical effect is that the tuning Bose intended is the tuning you actually receive, rather than the version your ear geometry happened to produce. It takes a second or two and requires nothing from you.
Why Bose QuietComfort Ultra Lunar Blue Cancels Better
The same measurement helps the cancellation. Active cancellation has to know what noise is reaching the eardrum, not what is reaching the outside of the earcup, and how well an earcup seals varies enormously between heads, hair and glasses.
By measuring the actual result inside the ear, the system compensates for an imperfect seal rather than assuming a perfect one. That is a large part of why this model cancels more effectively than the QuietComfort headphones below it.
QuietComfort Ultra Lunar Blue: Personal Tuning on Top of Personal Tuning
CustomTune handles the correction automatically. On top of that, the Bose Music app gives you manual bass, mid-range and treble control, plus the ability to save custom listening modes at any cancellation level.
Immersive Audio is available as a mode of its own, spatialising the sound out in front of you, and Immersion Mode pairs it with full cancellation. See the official Bose QuietComfort Ultra Headphones page for the complete feature list.
Browse more in our headphones collection, or see the full range from Bose.
QuietComfort Ultra Lunar Blue: Who Lunar Blue Suits
Lunar Blue is a soft, hazy blue-grey with a slightly cool cast — the least corporate of the four finishes without being loud. It works particularly well against the polished metal arms on this model, which pick up the cooler tone rather than fighting it.
It sits between the anonymity of Black and the warmth of Sandstone. Being a mid-tone, it hides everyday marks better than the pale finishes while still being instantly identifiable as yours in a shared space.
QuietComfort Ultra Lunar Blue: Daily Use and Battery
Up to 24 hours of playback with Immersive Audio switched off, dropping to around 18 with it running. A full charge over USB-C takes about three hours, and a quarter-hour top-up returns roughly two and a half hours.
The cells are rated beyond 500 full charge cycles, which at weekly charging is years of service, though they are not user-replaceable. Ear cushions are available separately, which is the part that actually wears out first.
Technical Specifications
- Model: Bose QuietComfort Ultra Headphones (2023)
- Colour: Lunar Blue
- Type: Over-ear, closed-back, wireless, folds inward
- Listening Modes: Quiet Mode, Aware Mode, Immersion Mode, plus user-created custom modes
- Signature Technologies: Bose Immersive Audio spatial sound and CustomTune ear-shape personalisation
- Battery Life: Up to 24 hours with Immersive Audio off, up to 18 hours with it on
- Charging: USB-C, around 3 hours for a full charge; a 15-minute charge gives up to 2.5 hours
- Battery Longevity: Rated for over 500 full charge cycles, not user-replaceable
- Bluetooth: 5.3, range up to 9 m, with aptX Adaptive on compatible Android devices
- Microphones: Noise-rejecting array that isolates your voice from background noise
- Connections: USB-C and a 2.5mm audio jack on the left earcup, with LED indicator
- Materials: Protein leather ear cushions and headband, aluminium extenders, polished metal arms
- App: Bose Music, with adjustable EQ, custom modes, battery level and device management
- Replacement Parts: Ear cushions available separately
- Released: 2023
- Warranty: 1-year warranty from Totot
FAQ – Bose QuietComfort Ultra Lunar Blue
Do I need to set CustomTune up?
No, QuietComfort Ultra Lunar Blue It runs automatically each time you wear the headphones and needs no input from you.
Does CustomTune work if I wear glasses?
Yes, and it helps more in that case, because it compensates for the imperfect seal that glasses arms create.
Can I still adjust the sound manually?
Yes, QuietComfort Ultra Lunar Blue CustomTune corrects for your ear shape; the app EQ then lets you shape bass, mid-range and treble on top.
How dark is Lunar Blue?
A soft mid-tone blue-grey. Clearly blue in daylight, subtle enough for professional settings.
Can the battery be replaced later?
Not by the user. It is rated for more than 500 charge cycles, and replacement ear cushions are sold separately.
Does Totot deliver across the UAE?
Yes. We ship nationwide via Aramex for a fixed AED 10, with cash on delivery, Tabby and Tamara available at checkout.
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