Compare Marshall Monitor III A.N.C. Over-Ear Bluetooth Headphones vs Sennheiser ACCENTUM Wireless Headphones

The carry case was usually praised as sturdy, compact, premium, or travel-friendly, though a few reviewers found it bulky or unnecessary.

The missing case or pouch was a repeated complaint across reviews and hurt travel confidence.

Included accessories received praise for the attractive red-velvet case and included cables.

Included accessories were sparse, with reviewers criticizing the lack of case and the need to buy extra cables or adapters.

Portability and foldability were major strengths thanks to the compact folding design and small travel footprint.

Portability was a weakness because the headphones do not fold compactly and can feel bulky in a bag.

Travel friendliness was a major strength due to battery life, compact folding, wired flexibility, and protective case design.

Travel friendliness was hurt by no case, no compact fold, and limited airplane convenience despite strong battery life.

LE Audio readiness was treated as a positive future-proofing feature by multiple reviewers.

LE Audio readiness was a limitation where discussed, with reviewers noting it may not arrive or will not be supported.

Clamping comfort was rated very highly, with reviewers reporting little to virtually zero pressure.

Clamping force was the most common comfort caveat, ranging from well judged to tight enough to ruin the fit for some reviewers.

Hi-res playback support was a weakness because reviewers repeatedly noted no hi-res Bluetooth audio support.

USB-C audio and built-in playback capabilities were viewed positively for lossless or wired listening, with no hiss noted in one review.

aptX support was criticized as absent, especially for Android or lossless-codec users.

aptX support was treated as a meaningful advantage, with reviewers noting aptX HD support and better results from aptX sources.

Audio-video sync was a concern for gaming because one reviewer tied the lack of low-latency codecs to more noticeable latency.

Audio-video sync was excellent in the one review that tested it, with zero latency reported across phone video use.

Codec support was a clear weakness because reviewers noted no hi-res, lossless, or low-latency codec support.

Codec support was generally viewed favorably thanks to AAC, aptX, and aptX HD, though codec-related limits remained for some users.

Durability over time was viewed positively because reviewers described more durable, repairable construction and long-term toughness.

Durability confidence was split between a tank-like build impression and concern that the plastic would not last.

Bluetooth version support was tied to a stable, high-performance wireless connection in one review.

Bluetooth 5.2 was called a bummer in one review because it raised concerns about future LE Audio features.

Connection stability was praised as stable and high-performance in one review.

Fit stability was a caveat in one review, where the cups shifted with head movement.

Microphone noise reduction was praised for handling simulated or real wind well, despite some vocal-clarity caveats elsewhere.

Microphone noise reduction was a recurring weakness, especially with wind, chatter, road noise, or other background noise.

Premium feel was praised through richer materials, superior build impressions, and a luxurious presentation.

Premium feel was inconsistent, ranging from better than expected to clearly cheap or subpar beside more expensive models.

One reviewer found the headphones plenty loud, with comfortable listening volume well below maximum.

Volume output was usable but not exceptional, with reviewers noting it was not the loudest and could feel quiet below high volume settings.

Call microphone quality received strong praise from one reviewer, especially for windy phone calls.

Call microphone quality was serviceable but mixed, with some clear-call praise and several complaints about thin, robotic, muffled, or merely decent voice quality.

Advanced software features were considered solid and modern, but reviewers did not see them as uniquely class-leading.

Advanced software features were seen as plentiful, but they could feel overwhelming or restricted behind account-based tools.

Smart listening features were mixed: adaptive volume, Spotify Tap, and battery preservation drew praise, while missing convenience features held the score down.

Smart listening features were mixed: Sound Zones and sidetone-related tools impressed some reviewers, but account restrictions and subtle sound-check changes frustrated others.

Smart Pause performance was criticized for random triggering in one longer test.

The transparency-triggered conversation mode was considered useful where configured, even if it was limited by app behavior.

USB-C was useful for charging and wired listening, but reviewers criticized the one-port limitation and need for power in wired use.

USB-C was a consistent plus for charging and, in several reviews, wired USB-C audio.

The preset EQ experience was praised in one review, especially the bass boost setting for adding dynamic sound without excess bass.

Preset and sound-check features were mixed: podcast and bass tools helped, but preset availability and subtle sound-check differences drew criticism.

Build quality was generally strong and rugged, with praise for durability and materials, offset by one report of creaking.

Build quality split reviewers sharply, from cheap-feeling plastic to solid or tank-like construction.

Hinge durability was praised for being able to twist without showing signs of breaking.

Hinge durability received positive confidence in one review and was tied to sturdy build impressions in another.

Connectivity options were mixed: wired and wireless playback were useful, but the lack of a built-in 3.5mm jack and coiled cable hurt convenience.

Connectivity options were a strength, especially USB-C wired audio, Bluetooth, and two-device use.

Ear cup padding was widely praised as extremely soft, plush, pillow-like, and important to comfort and sealing.

Ear padding was usually praised as soft, plush, deep, or spacious, but one review criticized cheaper, less form-fitting cushions.

Headband comfort was praised for reducing top-of-head pressure through light weight and support-strap design.

Headband padding was generally praised, although one reviewer found the cushioning insufficient for larger heads.

Button controls were a standout strength, with reviewers preferring the tactile joystick and physical buttons over touch controls.

Physical controls were often praised as simple, tactile, and reliable, though some reviewers found small buttons or the lack of touch controls annoying.

Passive isolation was praised for the soft cushions and seal, which helped block noise even before ANC was considered.

Passive isolation benefited from the cup design and padding, with reviewers noting a decent seal and meaningful physical noise blockage.

Maximum-volume clarity was strong in the reviews that addressed it, with no audible or max-volume distortion reported.

Maximum-volume clarity was strong in one review with no distortion, but another found lower safe volumes too quiet for full instrumental enjoyment.

Multi-platform compatibility was positive where tested on both iOS and Android.

Multi-platform compatibility was strong where tested, especially two-device use across different ecosystems and wired-plus-Bluetooth use.

Comfort was one of the strongest consensus wins, with reviewers repeatedly praising all-day wear, soft fit, and low fatigue.

Comfort varied by head shape: many reviewers found it comfortable for hours, while others disliked warmth, tightness, or glasses pressure.

The default frequency response was judged broadly listener-friendly, especially for casual listeners.

Frequency balance was generally considered organized or balanced, though reviewers also noted sub-bass emphasis and upper-mid under-emphasis.

Charging was praised for fast top-ups, with reviewers citing up to 12 hours of playback from a short charge.

Charging was generally positive thanks to quick-charge usefulness, though one reviewer called the fast-charge result only average.

Features at launch were adequate but not standout, with one reviewer saying the standard feature set lacked a truly distinctive tool.

Feature set was generally strong for the price, with modern ANC, app, multipoint, and battery features repeatedly noted.

Instrument separation was a consistent strength when mentioned, with reviewers noting solid layering, instrument placement, and separation across bass, mids, and highs.

Instrument separation was a strength in some reviews, but comparisons to higher-end models exposed reduced layering and finer detail.

EQ customization was broadly useful and responsive, though one reviewer wanted more precision than the five-band setup provides.

EQ control was a major strength for many reviewers, though PCMag and one YouTube review found the EQ interaction or results frustrating.

The lack of a built-in 3.5mm analog jack was a repeated drawback, even though USB-C-to-3.5mm wired listening is possible.

Analog input availability was weak because reviewers noted the absence of a 3.5mm/TRS jack, sometimes as a clear con.

The app was viewed positively for customization, controls, battery options, and a generally intuitive experience.

The app was useful and feature-rich, but some reviewers found it crowded or dependent on optional account-based features.

Multipoint reliability was strong where tested, with seamless switching or extremely reliable two-device use.

Multipoint was consistently positive where tested, with reviewers praising easy device management, hot swapping, and flawless switching.

Water and sweat resistance was a weakness because reviewers noted the headphones are not waterproof and should avoid rain or gym use.

Water resistance was weak: reviewers flagged the lack of ingress protection or water resistance as a reason to avoid wet or workout use.

Android compatibility was positive in one review that found the headphones sounded good on Android.

Android compatibility was positive in the one review that described Android pairing as quick and easy.

LDAC was only discussed as an absent higher-quality codec, making it a codec-support weakness.

LDAC was a limitation in the one review that compared aptX HD with LDAC bit-rate capability.

ANC was usually judged good, solid, or decent for daily use, but several reviewers said it still trails Bose, Sony, or the top tier.

ANC was the most divisive core feature: some called it good for the price, while others found it weak, subpar, or merely okay versus premium models.

Value was generally fair to good, especially on sale, but reviewers noted strong cheaper or better-performing rivals.

Value for money was one of the strongest themes overall, though What Hi-Fi and one YouTube review felt compromises made the price less convincing.

Wind handling was mixed: one reviewer found wind susceptibility in ANC/transparency, while another found moderate wind manageable.

Wind handling was mixed: app wind reduction helped listening, but microphones still struggled in windy conditions.

Immersive audio quality was mixed, with some reviewers enjoying the added atmosphere and others finding the effect limited or not truly immersive.

Immersive audio impressions split: one review praised spacious, raw performance, while another found the presentation emotionally flat.

Design and aesthetics were mostly praised for the distinctive Marshall look, premium detailing, and rugged styling, though taste varied.

Design opinions were mostly positive for the clean, understated look, though What Hi-Fi found the styling plain.

Treble feedback was split between clear, impressive highs and complaints about sibilance, fatigue, or sharpness on some tracks.

Treble was described as crisp, clear, and non-harsh by several reviewers, but others heard dullness, roll-off, or limited upper-end nuance.

ANC background noise performance was decent: one review measured strong overall noise reduction, and another said white noise was not bad.

Background hiss was not a major concern in the reviews that mentioned it, with one ANC test noting little hiss and another hearing no hiss.

Weight comfort was a major strength, with reviewers repeatedly calling the headphones light for the class and easy to wear.

Low weight was a clear advantage, repeatedly helping the headphones feel easy to wear for long sessions.

Midrange impressions were mixed: some praised vocals and instruments, while others heard under-emphasized mids, prominent high mids, or occasional clutter.

Midrange and vocal clarity were often praised after EQ or in balanced listening, though some reviews heard veiling or a hollow midrange.

Headband adjustability earned a small positive note for visible adjustment numbering.

Headband adjustability was positive where evaluated, with smooth sliding arms that tucked into the band.

Overall recommendations were positive but caveated: reviewers liked the package, especially for travel and rock-focused listening, while noting ANC, codecs, and wired tradeoffs.

Overall recommendations leaned positive for value and everyday use, but a few reviewers warned that ANC, fit, or build compromises limit the appeal.

Soundstage width drew mixed reactions, from solid or opened-up presentation to narrow, cluttered, or not true-spatial enough.

Soundstage feedback was mixed, ranging from surprisingly spacious to narrower than the Momentum 4.

Bluetooth performance was praised in one review as stable and high-performance.

Bluetooth behavior was praised for fast reconnection in one review, while another reported a brief stutter after pairing.

Reviewers generally liked the sound, describing it as pleasing, energetic, balanced, or excellent, with the strongest praise for rock and instrument-driven listening.

Reviewers mostly liked the sound, especially for the price, but one review found it bland and several noted detail or clarity limits.

Aesthetics were distinctive and often praised, but some reviewers noted the retro Marshall look will not suit everyone.

The discreet profile was praised for minimal branding and a sleek, understated appearance.

Integrated microphone feedback was mixed, with clear/crisp quiet-room results but criticism of vocal clarity or noisy-environment performance.

The integrated microphone setup was praised in one review for delivering on clearer voice-call pickup.

Battery life had the strongest agreement: reviewers repeatedly described it as class-leading, incredible, extraordinary, or far ahead of competitors.

Battery life was one of the strongest points, repeatedly described as impressive, long-lasting, or anxiety-free.

Transparency mode was considered usable and sometimes natural, but reviewers also noted hiss, limited realism, or weaker performance than the best rivals.

Transparency mode ranged from very natural and useful to artificial or only adequate, depending on the reviewer.

Bass was usually described as punchy or well-balanced, though several reviewers said it could use more impact, cleaner control, or stronger low-end weight.

Bass impressions split: many heard satisfying punch, warmth, and rumble, while a few found the bass either too intense or lacking impact.

Ear cup rotation and swivel helped portability, though one reviewer found the twisting mechanism odd on the head.

Swivel/rotation was useful where mentioned, with reviewers noting lay-flat or 180-degree rotation, though it did not solve foldability concerns.

Setup simplicity received praise from one reviewer who called pairing/setup easy.

Setup simplicity was a strength, with fast pairing and stable app/headphone connection reported.

ANC-off listening measured slightly better in one review, suggesting ANC can subtly affect the sound signature.

ANC slightly affects audio performance, with one review noting higher sound-quality scores when ANC is disabled.

Auracast support was treated as a positive future-facing feature, especially for Android and LE Audio readiness.

Auto-play and wear detection worked but was slow to react in one test.

Cable quality received praise in one review for the black cable with brass tips and premium-feeling presentation.

Earpad/body-borne noise was a notable negative for one reviewer, who heard footsteps and heartbeat-like sounds.

Ecosystem integration was positive in the one review that emphasized two-device Bluetooth use regardless of ecosystem.

Replaceable earpads were praised as easy to remove or replace and useful for longevity.

Replaceable pads and headband parts were a repairability plus where described.

Sensor performance was a concern because one reviewer reported random wear-sensor triggers.

Sidetone was well received where evaluated, helping calls feel more natural or letting users hear their own voice.

Sound leakage was viewed positively in one review because the plush ear cups helped minimize leak.

Spatial audio was divisive: some liked the extra space, but others found it unnatural, underwhelming, or below true Atmos-style experiences.

Streaming service integration was praised strongly for Spotify Tap, especially for starting playback without pulling out a phone.

Sustainability and repairability were praised for replaceable parts and repair-minded design, with a caveat that batteries are not user-replaceable.

Sustainability materials received a modest positive note for recycled plastic use.

Voice prompts and feedback added personality through Marshall-style guitar sounds during power and pairing.

Wear detection auto-pause was only moderately successful, working but reacting slowly.

Wear detection performance was a weakness in one longer test because the sensor randomly triggered.