Compare Marshall Monitor III A.N.C. Over-Ear Bluetooth Headphones vs Cambridge Audio Melomania P100 Headphones

ANC is consistently described as solid to above average and improved versus the prior model, but most sources still place it behind top-tier Bose or Sony performance. You can adjust ANC strength in the app and set how the ANC button cycles modes; the common complaint is the lack of true adaptive ANC that auto-adjusts for you.

ANC performance is considered effective for commuting and travel but not the category leader, and several reviews mention occasional artifacts or movement-related issues in certain situations. Reviews consistently note multiple ANC levels plus a transparency option, with controls available via button and the companion app.

Android support is good for basics (pairing features, LE Audio readiness), but Android users who want aptX or LDAC will find those codecs missing.

Android compatibility is strong, especially when paired with aptX features and one-tap pairing options on supporting devices.

The Marshall app is generally well-liked for being clean and functional, giving access to firmware, EQ, ANC levels, control customization, and battery-care features.

The Melomania companion app is considered functional with key settings, though a few reviews mention UI quirks such as confusing store listings or limited customization depth.

Reviews that address aptX note it is not supported, which can be a downside for some Android users.

aptX support, including Adaptive and Lossless where compatible, is frequently highlighted as a major advantage for Android users and hi-res streaming.

Some reviewers flag potential latency for gaming because low-latency Bluetooth codecs are missing; wired USB-C listening is the safer option when sync matters.

Low-latency or gaming mode is commonly mentioned and helps A/V sync, though some testers still notice remaining latency in the most timing-sensitive use cases.

Bass hits with satisfying punch and extension for most listeners, but it is not a true bass-cannon and some reviewers want a stronger bass-boost or tighter control.

Bass is generally described as punchy and well-controlled, elevated enough for impact without smothering the mix; a few note it is not the hardest-hitting choice for bass-heavy electronic tracks.

Battery life is the headline feature: 70 hours with ANC on and up to 100 hours with ANC off is repeatedly highlighted and often backed up by real-world use. The battery is not generally described as user-replaceable; Marshall instead focuses on battery preservation settings to help extend lifespan.

Battery life is repeatedly called class-leading, commonly cited around 60 hours with ANC on and up to 100 hours with ANC off. A user-replaceable battery option is a key differentiator and is repeatedly framed as a way to extend long-term ownership.

Bluetooth stability is generally reliable in daily use, with Bluetooth 5.3 and LE Audio readiness mentioned and few drop-out complaints.

Bluetooth connection is widely described as stable with good range, including reliable pairing in everyday use.

Build quality is generally rugged and travel-ready with an emphasis on durability and repairability, though a few sources mention minor creaks or quirks.

Build quality is consistently praised as sturdy with tight tolerances and durable materials for the price.

The multi-directional control knob and dedicated buttons are widely praised as intuitive, tactile, and easier to use than touch controls.

Physical buttons are appreciated for reliability and tactile feedback, but some reviewers find certain buttons small or not optimally placed.

Cable quality and design are serviceable, with included cables for charging and wired use, but some miss the older coiled cable style or find adapters less convenient.

Included cables are generally viewed as good quality and durable, with multiple outlets noting thoughtful bundling for USB-C and 3.5mm sources.

The included hard case gets high marks for protection and premium feel (velvet interior, compact footprint), though a few find it thick or bulgy.

The supplied hard case is widely considered protective and well-made, often with clever storage, but several reviews say it is larger than ideal.

Charging is fast and convenient via USB-C, with common claims of about 12 hours of playback from a short charge and full recharge around a couple of hours.

Charging is generally praised thanks to USB-C and strong quick-charge behavior that can add several hours from a short top-up.

Clamping force is generally light, with multiple reviewers reporting minimal pressure and little to no head squeeze.

Clamp is described as secure and well-judged by some, but too tight for others, especially during longer sessions or with glasses.

Codec support is basic for the price: SBC and AAC are the norm, with some mentions of LE Audio/LC3, but there is no mainstream hi-res Bluetooth path.

Codec support is a standout, with broad support including AAC and Qualcomm options that many reviewers cite as a key value point.

Long-session comfort is a standout: low weight, plush pads, and pressure-distributing headband design earn frequent praise, with only occasional complaints about heat buildup.

Comfort varies by listener: many can wear it for hours with minimal fatigue, while others cite weight, clamp, or headband stiffness creating pressure over time.

Design is classic Marshall amp-inspired with textured finishes and brass/gold accents; it feels premium to fans but can be polarizing for those who prefer modern styling.

Design is broadly seen as premium and tasteful with quality materials, though a few mention minor aesthetic nitpicks such as bulk or how it sits on the head.

Earcup padding is repeatedly described as very plush and supportive, improving seal and comfort, though it can feel warm over extended wear.

Earpad comfort is commonly praised as plush and well-cushioned, contributing to isolation and long-wear comfort.

Multiple reviews mention wide swivel/rotation and folding behavior that helps the headphones sit flat, pack smaller, and fit securely into the compact case.

Swivel and rotation range is typically considered adequate to achieve a seal, and several reviews note broad rotation for laying flat.

The 5-band EQ is responsive and helpful for tailoring the signature sound, though it is not as granular as more advanced EQ systems.

The 7-band EQ is a consistent highlight, offering meaningful tuning control and the ability to save custom curves, though at least one review notes limited labeling or guidance.

A find-my style locating feature is mentioned in at least one review, positioned as a helpful extra rather than a core differentiator.

Tuning is usually characterized as close to neutral with a touch of warmth or bass lift; a couple of reviews suggest the default EQ can feel a bit restrained until adjusted.

Adjustment and fit mechanisms are practical, with discrete steps and a comfort strap/headband design that helps distribute pressure and maintain a stable seal.

Adjustability is generally good, with easy headband sizing to fit a range of head shapes.

Hinges and structure are often described as bendy and durable, but at least one review notes odd twisting behavior when you turn your head.

Hinges and moving parts are generally described as smooth and sturdy, with strong overall structural integrity in most reviews.

Included accessories are typically strong for the category: a hard case plus cables for charging and USB-C-to-3.5mm wired listening are commonly noted.

Included accessories are considered generous, typically including a protective case and both USB-C and 3.5mm-capable cables.

Instrument separation is typically above average with clear placement, but layering can compress or get congested as mixes get busier.

Instrument separation and imaging are frequently highlighted as a strength, helping dense mixes stay intelligible and layered.

Reviews that address LDAC note it is not supported, reinforcing that these prioritize battery life and simplicity over hi-res wireless codecs.

At least one review calls out the lack of LDAC, so Android users who prefer LDAC may see this as a limitation compared with Sony models.

At higher volumes, many report clean playback with little obvious distortion, though a few note dynamic compression or a ceiling that flattens crescendos.

Noise handling on calls is a relative strength, with several tests showing good wind and background-noise suppression, though a few note it can still struggle in very noisy offices.

Noise reduction for calls is generally decent and helps intelligibility, though performance varies by environment and at least one review notes weaker suppression of background sounds.

Call quality ranges from clear in quiet environments to merely decent in louder settings; it is generally usable for everyday calls but not always meeting-grade.

Call quality is often rated highly with clear voice pickup, but a few testers report the mic can sound distant or let in more background noise than expected.

Midrange is generally strong for guitars and vocals, though some note either a slight mid dip (snare/vocals) or occasional mid-forward congestion on busy tracks.

Midrange reproduction is typically clear and natural with strong vocal presence, but some critics find it slightly thin compared with more dynamic rivals.

Multi-platform performance is generally good across phones and computers, but at least one review reports less smooth behavior with certain Apple devices compared with Android or Windows.

Multipoint is widely reported to work well for two devices, though some wish for a device-management list and note occasional confusion when mixing wired and Bluetooth sources.

Multipoint pairing is repeatedly reported to work smoothly and switch between two devices reliably.

Passive isolation is strong thanks to a very good seal from the pads, helping block higher-frequency noise even before ANC is enabled.

Passive isolation is strong thanks to large pads and a solid seal, with some users noting it can block a lot of ambient noise even before ANC is enabled.

Portability is excellent: the cups swivel/fold and the headphones collapse into a very compact shape that fits a small travel case.

Portability is a common drawback: it does not fold down small, and the travel case can be bulky for minimal bags.

Preset EQ profiles are useful and easy to swap, with bass-boost and other tonal shifts helping different genres, though a few reviewers find boosts could go further.

Preset EQ profiles are useful for quick changes and cover common genres, but some listeners still prefer manual EQ to add extra energy or brightness.

Replaceable earpads are a strong point, with twist-off pads that are easy to remove and swap, supporting long-term maintenance.

Replaceable earpads are repeatedly highlighted as a practical, longevity-focused feature and are easy to swap in most accounts.

Wear detection is available for auto play/pause, but experiences vary from fine to slightly slow or occasionally over-sensitive; it can usually be disabled.

Wear detection sensors are supported but get mixed reliability notes, ranging from convenient auto-pause to occasional delays or overly sensitive behavior.

Sidetone behavior is mentioned as present to some extent for calls, but not a heavily featured or widely adjustable system in the reviews.

Setup is straightforward and the app layout is easy to navigate, but some reviewers note missing premium conveniences like adaptive ANC behavior or deeper device management.

Setup and day-to-day operation are usually described as straightforward, aided by physical buttons, simple pairing, and an app that covers the essentials without forcing account creation in at least one review.

Across reviews, sound is lively and engaging with a clear lean toward rock-focused tuning, but it stays enjoyable for many genres once EQ is applied. Wired listening works via USB-C using the included cable and is often described as clean and low-latency, but convenience varies because there is no built-in 3.5mm jack and some report you may need power for wired use.

Most reviews praise an energetic, detailed presentation that competes above its price, though a minority find it a bit polite or less exciting without EQ tweaks. Wired playback over USB-C is often praised for improving fidelity and consistency versus Bluetooth; analog connection via the included adapter cable is also supported.

Soundstage is decent for a closed-back ANC headphone but not the widest; some tracks can feel narrow or cluttered unless you use the Soundstage processing.

Soundstage is often described as open and spacious for a closed-back wireless model, with a few noting it is more compact than deliberately wide-sounding competitors.

Soundstage/spatial processing is a fun extra with adjustable room feel, but most agree it is not true immersive spatial audio and can sound synthetic on some tracks.

Multiple reviews flag the absence of spatial audio features, so it relies on conventional stereo presentation and EQ rather than 3D modes.

Stability on the head varies: some find it secure, while others say it can sit loosely for sport or slip during certain movements.

Several reviews highlight recycled or sustainability-minded materials, positioning these as more eco-considerate than many direct rivals.

Sustainability is a consistent theme: recyclable packaging, recycled materials, and serviceable parts are cited as meaningful positives.

Multiple reviews note the lack of touch controls, so this model effectively scores by omission: it prioritizes physical buttons over touch gestures.

Transparency mode is usable and adjustable, but opinions vary: some find it natural and clear, while others notice hiss and weaker reproduction of deeper voices.

Transparency mode gets mixed feedback: some find it useful and fairly natural, while others say it lacks clarity or fails to let all external sounds through.

Treble is crisp and energetic, yet several reviews mention brightness, sibilance, or fatigue on higher notes unless you tame it with EQ.

Treble is widely reported as crisp and articulate with good sparkle; it tends to avoid harshness, though some listeners want more bite or energy depending on the default EQ.

USB-C is the single physical port for charging and wired audio, which keeps things simple but also means no dedicated 3.5mm jack.

USB-C is a strong point, supporting charging and wired digital audio on compatible devices.

Voice assistant access is supported through the customizable button and app settings, making it easy to trigger assistants or shortcuts without touching your phone.

Voice assistant activation is supported and generally works as expected, with no major complaints beyond it being a standard feature.

The headphones get loud without needing extreme volume, with multiple reviewers noting comfortable listening well below 100% volume.

Volume output is generally ample, reaching comfortable listening levels well below max, with enough headroom for louder tracks.

There is no stated water or sweat resistance rating in the reviews, so these are best kept away from rain and workouts.

At least one reviewer notes there is no stated water or sweat rating, so it is not ideal for workouts or wet conditions.

Weight is consistently called light for the class (around the mid-200g range), contributing strongly to comfort and portability.

At roughly 330g, weight is acceptable to some but heavy to others, and it can feel cumbersome around the neck or in a bag compared with lighter rivals.