Compare Marshall Monitor III A.N.C. Over-Ear Bluetooth Headphones vs JBL Live 780NC

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

The included analog cable works as intended, but its 120cm length is too short for relaxed couch listening.

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

Wired hi-res playback can sound airier, more precise, and more detailed than standard wireless listening. The headphones still need power for processing and do not behave like a conventional passive pair.

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

Codec coverage is unusually complete for the price, with AAC, SBC, LDAC, LC3/LE Audio, and wired hi-res options covering quality and latency needs.

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

Dolby Atmos playback is supported, but the benefit is constrained because only a limited set of streaming services offers compatible content.

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

The proximity sensor is quick and dependable across different devices and operating systems.

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

Automatic pause and resume worked consistently in testing, making short interruptions effortless.

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

Headband padding is the main ergonomic weakness. The limited cushioning can create crown pressure well before the plush earcups become uncomfortable.

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

The soft pouch is one of the most consistent complaints. It is thin and offers far less protection than the hard cases supplied by some competitors.

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

Video mode and modern codecs deliver low latency, with improved lip sync and no visible delay reported in streaming tests.

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

Wear detection is typically fast and reliable across devices, pausing when the headphones come off and resuming when they return. Hair or hats can create skin-contact quirks.

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

The current metal-hinge construction looks promising, but a previous Live model failed after two years of daily use. Long-term durability of this new model is therefore not yet proven.

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

Playback stops immediately when the headphones are removed, reducing missed audio and saving battery.

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

The USB-C-to-3.5mm cable is useful, but the missing charging cable and thin pouch draw repeated criticism. One package included a charging cable, suggesting regional contents may vary.

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

LDAC can improve clarity, separation, and detail on compatible Android devices. It may also cause occasional dropouts, use more power, and disable some personalized or spatial features.

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

The firm clamp keeps the headphones secure and can work well for walking or exercise. It is also the most repeated comfort complaint, with larger heads especially likely to feel pressure over time.

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

LE Audio can lower latency and power use, but switching modes was laggy and unreliable in one test. Once connected, LC3 performed well.

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

Replacement information is inconsistent: one test says the pads can be swapped, while another could not remove them and found no third-party options. Buyers prioritizing serviceability should verify current parts support.

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

Swappable earpads help serviceability, but battery replacement appears less straightforward and may require JBL support.

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.

Bluetooth 6.0, multipoint, LDAC, LE Audio, Auracast, and wired playback create one of the broadest connection packages in the class.

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

Movie spatial mode adds convincing depth, scale, and a larger sense of space, making films feel more cinematic.

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

The launch feature set feels unusually complete for a midrange model, competing with more expensive wireless headphones from day one.

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

The built-in beamforming microphones deliver strong voice pickup for calls, including outdoor use with substantial background noise.

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

The software package feels unusually close to flagship territory, with Personi-Fi, Relax Mode, low-volume EQ, call tuning, Auracast, spatial modes, wear detection, and extensive remapping.

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

Plush pads and moderate weight let many people wear the headphones for hours. Others develop headband pressure or clamp fatigue after 30 minutes to a few hours, so comfort depends heavily on head shape.

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

Wear-based play and pause is highly convenient and usually accurate, though hair or hats can interrupt skin detection.

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

The mix of metal, smooth plastics, silicone, and leatherette often looks and feels more expensive than expected. The plastic-heavy shell still reads as midrange to some users.

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 is deep, punchy, and fun for hip-hop, electronic music, movies, and workouts. It is also the biggest dividing line, with the default low end often sounding too boomy or overpowering until EQ is applied.

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

Call quality is generally clear and dependable, with strong results in busy outdoor settings. Compared with premium rivals, voices can sound slightly processed or less natural.

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

Background suppression performs well against traffic, cafés, and general outdoor noise while often keeping speech intelligible. In extremely loud conditions it can become aggressive and clip the voice.

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

Passive isolation depends strongly on fit: the snug seal and plush pads block a useful amount for many users, while others find it minimal.

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

The tuning favors energy over neutrality, with elevated bass and sometimes recessed mids. It becomes more balanced and natural with the Studio preset or a custom EQ.

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

The app’s 10-band or semi-parametric EQ is unusually flexible, with custom curves, saved presets, and hearing-based personalization. That control matters because it can quickly tame the heavy default bass.

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

Multipoint usually switches quickly and seamlessly between phones and computers. Some tests found buggy handoffs or required playback to be paused on the first device.

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

Most assessments warn that there is no confirmed IP rating, making heavy sweat or rain a risk. One video claimed splash resistance, but that conflicts with multiple other sources.

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

A faint ANC noise floor can be heard in very quiet rooms, but it stays unobtrusive and disappears once music starts.

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

Android users get the fullest wireless experience through LDAC, with cleaner and more detailed playback reported on compatible Samsung hardware.

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

Pairing and switching work well across smartphones, tablets, laptops, and even Linux systems, making the headphones easy to share between platforms.

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

Ambient Aware, TalkThru, Relax Mode, and automatic behaviors add real everyday convenience. TalkThru is the most divisive because its playback behavior can feel awkward.

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

Ambient Aware is often praised for natural, clear awareness and quick switching. Some tests heard a more occluded or artificial presentation than premium models, especially in the upper frequencies.

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

The ear cushions are widely described as soft, plush, and roomy. They can feel shallow or warm for some ears, but the padding itself is consistently praised.

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

The earcups rotate flat and fold inward, giving the frame useful flexibility for neck wear and packing.

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

The earcups swivel flat and the frame folds down enough to fit easily in a bag. The soft pouch limits protection, but the hardware itself travels well.

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

At roughly 256–270 grams, the headphones feel light enough for extended use without seeming fragile. The weight is generally well judged.

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

Wind performance varies: some call tests stayed clear with little audible wind, while others heard intrusion or saw transparency mode disengage. Strong gusts remain the harder case.

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

Metal hinges and sliders are a standout construction detail, giving the folding mechanism a sturdier feel than the all-plastic joints common at this price.

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

The JBL Headphones app is a standout strength, combining ANC controls, EQ, Personi-Fi, spatial modes, call tuning, Relax Mode, and control remapping. Setup was generally clear and reliable.

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

At discounted regional prices, the headphones often feel like a bargain because of their battery, app, codecs, and build. Around $250–$300, the crowded field offers credible alternatives with stronger sound or comfort.

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

Treble is usually clean and non-fatiguing, but opinions vary on its balance. It can sound crisp, slightly hot in the lower treble, or short on upper-treble air and detail.

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.

There is no native 3.5mm socket, which disappointed listeners who wanted a standard analog connection. Wired listening instead uses the included USB-C-to-3.5mm cable and still requires power.

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

Noise-cancelling can alter the tonal balance, with adaptive processing sometimes making the headphones sound less bass-heavy.

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

Adaptive ANC can reduce the bass-heavy balance, so listeners may hear a leaner signature when automatic compensation is active.

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

The app is clearly laid out and pairing is generally straightforward across phones, tablets, and laptops. Update and setup headaches were rare.

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

Separation is usually clear and layered, particularly with LDAC or wired playback. Dense, bass-heavy mixes can still collapse into congestion when the default tuning overwhelms the mids.

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 is strongest against steady low rumbles from trains, planes, traffic, fans, and air conditioning. Voices and sharper sounds can still leak through, but performance is unusually capable for the price.

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

Bluetooth range, stability, and pairing are widely praised, with connections holding well away from the source. The newest radio also supports a broad modern feature set.

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

The headphones can play very loudly while retaining clear, energetic sound, though the app’s volume limiter is wise for hearing safety.

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

The Studio preset is repeatedly recommended because it quickly reins in the default bass and restores a more natural balance.

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

The firm clamp keeps the headphones planted during walking, running, and gym use. Most real-world exercise tests found little bouncing or sliding.

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

The headphones play loudly and can open up at higher levels without immediately losing energy. An optional 85dB limiter provides useful protection.

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

Most listening tests found clear, lively, satisfying sound that performs above its midrange positioning. A smaller group considered it merely solid or disappointing at full price because the bass-forward balance obscures refinement.

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

The metal sliders adjust smoothly and fit a wide range of heads. People with longer faces may wish the band extended farther.

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

Vocals and instruments are usually clear, full, and easy to follow. On bass-heavy tracks, the strong low end can push singers backward or bleed into the lower mids.

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

Small logos, clean lines, and several subdued colors make the headphones easy to wear without loud branding. Brighter finishes add personality for buyers who want more visual impact.

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

Fast charging is excellent, typically adding about four hours from five minutes and making brief top-ups practical before work or travel.

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

Battery life is the clearest strength, repeatedly lasting days to roughly a week and broadly validating the 50-hour ANC and 80-hour non-ANC claims. Quick charging also adds hours from a brief top-up.

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

Spatial modes work best for movies and gaming, where they add scale, envelopment, and clearer positional cues. Music mode is much more divisive and is often subtle, artificial, blurred, or harmful to the mix.

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

Long battery life, effective low-frequency ANC, folding earcups, and quick charging make these especially well suited to commuting and flights. The soft pouch is the main travel compromise.

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

The physical volume, power, and ANC controls are repeatedly praised for tactile feedback and intuitive placement. The hybrid layout is easier to operate by feel than many touch-only designs.

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

The presentation can feel pleasantly wide and open for a closed-back model, especially with spatial modes. Other tests found the native stage average or narrow, so expectations should stay realistic.

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

The colorful, retro-leaning design stands out from anonymous black headphones and often looks more premium than expected. A few assessments still found the plastic styling ordinary or firmly midrange.

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

Auracast adds useful sharing and broadcast options, including links with compatible JBL speakers. It generally works once configured, though setup or LE Audio switching can require retries.

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

The headphones are widely seen as a compelling midrange all-rounder with premium-level features and battery life. The main reservations are bass-heavy tuning, clamp pressure, and stronger-value rivals at full price.

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

Metal hinges and sliders, tight seams, and a creak-free frame give the headphones a sturdier feel than many midrange rivals. Plastic remains visible, but the overall construction inspires confidence.

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

Bluetooth 6.0 is viewed as a worthwhile upgrade, helping range, stability, LE Audio readiness, and future-proofing.

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

Spoken cues clearly announce power and mode changes, giving more useful feedback than simple beeps.

A desktop amplifier tightened the low end and improved instrumental separation, though the headphones still behave more like a smart wireless model than a passive audiophile design.

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

Automatic power-off is a useful safeguard for forgetful users and helps prevent unnecessary battery drain.

Detail is strong for the class, especially with LDAC or wired playback, and background elements are often easy to pick out. Analytical listeners may still want more fine texture and air.

The optional Smart TX transmitter can add wireless audio to planes, old TVs, and other non-Bluetooth sources. It is potentially useful, though its extra cost is substantial.

The sound is lively, punchy, and expressive enough to keep energetic music engaging. Its smoother tuning can slightly soften the biggest dynamic swings.

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

Auracast can link the headphones with compatible JBL speakers such as the Flip 7 or Go 5, adding a useful shared-listening option.

Game-oriented spatial processing and low-latency modes can sharpen footsteps, gunshots, and directional placement. Gaming tests found the presentation engaging and easy to localize.

Glasses comfort is mixed: the fit can be easy for some users, while the snug clamp creates pressure for others. Hats may also interfere with wear detection.

Imaging is generally accurate, with clear center and left-right placement and particularly strong directional cues in gaming. Layering between the main positions is less impressive.

Overall sentiment is strongly positive, with the package often exceeding expectations for completeness and polish. Lukewarm reactions focus mainly on price, default bass, or comfort.

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

Adjustable VoiceAware sidetone helps users hear themselves naturally during calls, especially in noisy places.

The matte finish avoids the fingerprint-heavy look of glossy plastic and should stay cleaner in daily handling.

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

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

The touch surface is generally responsive and highly customizable. Missed light taps and accidental triggers can occur because the active area is large.

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

Warmth and sweat are fit- and climate-dependent. Some users report clammy or hot faux leather, while an outdoor exercise test found surprisingly little sweat buildup.