Bose SoundTrue Ultra In-Ear Headphones for Android Devices – Charcoal Black

Sealed Acoustic Design

Immersive Sound, Natural Isolation

The SoundTrue Ultra’s sealed acoustic design is the foundation of its sound performance. By forming a passive seal between the earphone and the ear canal, the design blocks ambient sound from entering and prevents the headphone’s own sound output from leaking outwards. The result is that bass frequencies — which are the first to be lost in an open or semi-open earphone design — are preserved and delivered with the weight and body that Bose tunes for. For commuting, travel, office use or any environment with background noise, the sealed design means the music competes successfully with ambient sound at lower volume levels, reducing listening fatigue from prolonged high-volume use. Bose tuned the SoundTrue Ultra with a wide frequency response that prioritises natural-sounding lows and lifelike vocal midrange, with clear instrument separation in the upper frequencies. The sound character is warm, full and musical rather than analytically flat — closer to the Bose over-ear tuning philosophy applied to in-ear format. The sealed design also provides passive noise isolation without active noise cancellation electronics, keeping the product simple, lightweight and battery-free.

StayHear Ultra Tips · S/M/L

Outer Ear Fit — Comfort Without Canal Pressure

Bose’s StayHear Ultra tips are a proprietary ear tip design that distinguishes the SoundTrue Ultra from conventional in-ear canal headphones. Standard canal earphones insert a silicone or foam tip deep into the ear canal to form an acoustic seal, which provides excellent isolation but can cause discomfort or pressure during extended wear. StayHear tips instead rest in the outer ear — the tip curves gently to follow the contour of the ear’s outer bowl (the concha), holding the earphone stable without inserting deeply into the canal. The seal is formed by the tip’s soft outer edge conforming to the ear’s natural shape rather than by canal insertion pressure. The result is a fit that stays secure during movement — including moderate gym use and commuting — while remaining comfortable for hours of continuous wear. Three sizes (S, M, L) are included to accommodate different ear geometries. The tips are made from a stay-soft material that maintains its pliability at body temperature rather than hardening with wear. Users who have found standard canal tips uncomfortable after extended use often find the StayHear design significantly more wearable.

3-Button Android Remote · Inline Mic

Samsung Galaxy and Android Call Control

The SoundTrue Ultra Android version features a 3-button inline remote and microphone on the cable, positioned at approximately chin level for easy access without removing the phone from a pocket or bag. The Android remote layout provides volume up, volume down and a centre multifunction button — a single press answers or ends calls, a double press skips to the next track and a triple press goes to the previous track, with a long press activating the voice assistant on compatible devices. This remote is specifically tuned for the Android control standard (OMTP/CTIA) used by Samsung Galaxy devices and most Android phones — it will not provide full functionality on Apple devices, which use a different remote protocol. The inline microphone captures voice for calls and voice assistant commands. The sweat-resistant construction covers both the earphones and the cable, making them suitable for gym sessions and commuting in varied weather. The cable is approximately 121.92cm — practical for routing from a hip pocket to the ear without excess.

Right choice if you…

✔ Own a Samsung Galaxy or Android device with a 3.5mm headphone jack
✔ Want Bose sound quality in a wired in-ear format — deep, immersive bass and clear mids
✔ Find standard canal earphones uncomfortable — StayHear tips rest in the outer ear, not deep in the canal
✔ Use headphones for calls and need a reliable inline microphone with Android call controls
✔ Want genuine Bose build quality for gym, commute and daily use

Consider something else if…

✖ You own an iPhone or iPad — the Android remote is not compatible with Apple devices; see the Bose SoundTrue Ultra Apple version (741629-0010)
✖ Your Samsung Galaxy has no 3.5mm jack (Note 10 and later, S20+) — these phones require a USB-C adapter for wired headphones
✖ You want active noise cancellation — the SoundTrue Ultra has passive isolation only; see Bose QuietComfort range for ANC

Technical Specifications

In the Box

Frequently Asked Questions

Will the Android version remote work with an iPhone?

No. The Android version (741629-0070) uses the CTIA/Android remote standard — volume and call controls will not function correctly on Apple devices. The Apple version (741629-0010) is a separate product with an Apple-compatible remote. For iPhone use, you need the Apple variant.

My Samsung Galaxy has no headphone jack — will these work?

The SoundTrue Ultra is a wired 3.5mm headphone. Samsung removed the headphone jack from the Note 10 onwards (and S20 series onwards). If your phone has no 3.5mm jack, you will need a USB-C to 3.5mm adapter — the Samsung original adapter (EE-UC10JUWEGWW) is the recommended option for full microphone and remote compatibility.

What is the difference between the SoundTrue and SoundTrue Ultra?

The SoundTrue Ultra is the higher-end model with improved StayHear Ultra tips (softer, more ergonomic fit), enhanced sweat resistance and a refined acoustic design compared to the original SoundTrue. The Ultra also includes a carry case as standard. Both are discontinued — the SoundTrue Ultra was Bose’s premium in-ear wired offering for Android users.

Do these have active noise cancellation?

No. The SoundTrue Ultra uses passive acoustic isolation — the sealed earphone design physically blocks ambient noise without electronics. For active noise cancellation in a Bose in-ear product, the QuietComfort 20 (wired) and QuietComfort Earbuds (wireless) are the relevant alternatives.

What does bulk packaging mean?

Bulk packaging means the headphones are brand new and unused — complete with all accessories (StayHear tips, carry case, clothing clip) — but supplied without the retail box. The product itself is identical to retail stock. This is genuine Bose product sourced from authorised supply channels.

Condition

Brand New — Bulk Packaging

Warranty

Manufacturer warranty (Bose)

Delivery

4–5 Working Days · Fully Tracked

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