Why Everyone is Buying the Mx Black (Full Review)

Introduction: My experience with the Mx Black

I've been using the Mx Black for the past four months as my daily audio companion — commuting, working from cafés, doing long afternoon calls, and taking it with me on a couple of weekend trips. I bought the Mx Black because the spec sheet looked promising: active noise cancellation (ANC), long battery life, a lightweight fit, and a modern matte finish that didn't scream "gadget." What I found was a product that impresses in a lot of practical ways but also shows the small compromises that usually come with mainstream premium earbuds.

In this review I’ll walk through what I liked, what annoyed me, and how the Mx Black stacks up against competitors. I’ll include real measurements and subjective impressions — battery behavior over several charging cycles, ANC performance on planes and subways, call clarity in windy conditions, and the app experience. If you’re considering buying the Mx Black, this is the hands-on breakdown from someone who lived with them through daily routines and trips.

Design and build: matte minimalism that works

The Mx Black arrives in a small matte case that looks classier than most budget packaging. In my experience the first impression matters, and the case gave me confidence that the product wasn’t trying to cut corners on feel. The earbuds themselves are finished in a soft-touch matte black that resists obvious fingerprints. Each bud is around 5–6 grams on my kitchen scale — light enough to forget about for hours but substantial enough that they don’t feel like brittle toys.

I appreciated the compact but slightly elongated stem design. That shape helps with passive isolation and gives more room for microphones (more on call quality later). The downside: the case is a little thicker than the ultra-slim models I’ve used; it fits comfortably in a jacket pocket but can feel bulky in the front pocket of slimmer jeans. I noticed the case hinge is firm and well-aligned after months of daily opening and closing — no wobble or creak so far.

Fit and comfort: long sessions are doable

Fit has always been personal for me. With the Mx Black, I noticed they come with four pairs of silicone tips and two pairs of foam tips. I ended up using the medium foam tips the most because they created a snug seal and improved bass extension. In my experience, I could wear them for 3–4 hours straight without needing to fidget. Sleeping with them is not comfortable — they’re not designed for side sleepers — but for working, commuting, and workouts they're fine. Sweat resistance is IPX4, which handled rainy walks and sweaty gym sessions without any issues.

Sound quality: balanced, slightly warm, and surprisingly detailed

Sound is the place where the Mx Black surprised me the most. From the outset I expected a consumer-friendly bass-forward profile; instead, the tuning leans toward a balanced but slightly warm signature. That means punchy bass when a track calls for it, clear mids that keep vocals forward, and adequate treble for details without becoming fatiguing.

What I appreciated: acoustic separation and a modestly wide soundstage for true wireless buds. Tracks with complex arrangements — jazz pieces, acoustic live recordings, and ambient electronic — preserved detail in different frequency bands. I noticed the bass has weight but rarely bleeds into vocals, which is a common complaint with cheaper earbuds.

What disappointed me slightly: at very high volumes the treble lacks the last mile of shimmer that audiophile-grade monitors deliver. Also, some highly compressed pop tracks sounded a tad congested, but in day-to-day listening that’s not a deal-breaker.

Active Noise Cancellation and transparency modes

ANC on the Mx Black is very good for daily life. After testing on subway rides, in cafés, and on a short flight, I found it reduces consistent low-frequency noise — bus and plane hum — very effectively. On the subway, it made conversational volumes manageable and cut cabin rumble significantly. It isn’t quite at the level of the best flagship models I’ve used, but for the price category it’s impressive.

Two things I noticed: first, there is a faint hiss when ANC is active if you listen to silence or very quiet passages — not loud enough to bother during music or podcasts but noticeable when you lean into silence. Second, the transparency (or ambient) mode is natural and doesn’t color voices; it felt useful when I needed to hear announcements or short conversations without removing the buds.

Battery life and real-world performance

The Mx Black advertises up to 10 hours of continuous playback on a single earbud charge and a total of 40 hours with the charging case. In my routine testing — primarily streaming over Bluetooth with ANC toggled between on and off — I averaged about 9–9.5 hours with ANC off and around 6.5–7.5 hours with ANC on depending on volume. After several charge cycles over two months, I didn’t notice significant degradation.

The charging case provides roughly three top-ups from near-empty to full in my experience. Quick charging is genuinely useful: a 10-minute boost provided about 90 minutes of playback, which got me out of tight windows before meetings. The case supports Qi wireless charging and USB-C fast charging; I found wireless charging convenient on my bedside pad.

Latency and gaming mode

I play a few mobile games and watch videos on my phone and tablet regularly. The Mx Black has a low-latency gaming mode that activates via the companion app; with that enabled I measured audio/video sync to be acceptable for casual gaming and video streaming. I still noticed a subtle lag in very timing-critical rhythm games, but for watching YouTube or playing shooters on a phone it was fine. Bluetooth 5.3 kept connections stable within the typical 10–15 meter range and handled short interruptions well.

Call quality and microphones

Call quality surprised me in a good way. The dual-microphone setup with a directional beamforming algorithm handled indoor calls and quiet outdoor calls well. I made several long conference calls and callers told me I sounded natural and present. Wind is still the enemy: on a windy walk I had to cup my hand or use the phone’s mic to get a more intelligible result. The product’s app offers a wind reduction toggle that helps, but it’s not perfect.

Software and companion app

The companion app is functional: firmware updates, EQ presets, ANC level adjustment, and a customizable touch control mapping are available. I used the app to switch between "Balanced," "Bass Boost," and "Vocal" presets frequently. One issue I experienced a couple of times was slow app launch on Android and a rare crash during a settings change; updates fixed most hiccups. Connection handoff between devices (phone to laptop, for example) is present but not instant — expect a short pause while the buds reconnect.

Controls and usability

Touch controls are responsive but can be a little too sensitive. I accidentally triggered play/pause a few times when pushing my hair behind my ear or adjusting my coat collar. The app allows disabling touch during workouts, which I used often. The LED pairing feedback and battery indicators are clear and the case’s magnetic latch gives a satisfying click each time.

Durability and support

After four months of daily handling, sweat, and travel, my Mx Black pair shows minimal wear. The matte finish is holding up well with no obvious paint chips. The company’s warranty and support process were straightforward when I used the online chat to confirm firmware versions before I manually applied an update. Replacement tip packs are sold separately; I’d recommend buying an extra set of foam tips if you prefer that fit — they made the biggest difference for me.

Pros & Cons

• Pros: Excellent ANC for the price bracket, comfortable long-wear fit with foam tips, balanced sound signature with good separation, long battery life with useful quick charge, Qi wireless charging support, strong call clarity in moderate conditions.
• Cons: Slight hiss with ANC active in quiet environments, case is slightly bulky for slim pockets, touch controls are occasionally too sensitive, companion app has occasional stability issues, wind handling on calls could be improved.

Comparison: Mx Black vs. similar choices

Buying guide: is the Mx Black right for you?

If you’re shopping for earbuds right now, here’s how I’d think through the decision based on my months of using the Mx Black.

1. Decide your primary use case

Are you using buds for commuting and travel, for working from home and calls, for the gym, or mostly for casual music at your desk? The Mx Black shines as an all-rounder: it’s a particularly strong choice if you want decent ANC and long battery life without paying flagship prices. If you need the absolute best ANC or top-tier wind-resistant call mics for outdoor reporting, consider a higher-priced flagship.

2. Check fit and isolation

Fit matters more than specs. The Mx Black’s foam tips were the difference between okay and excellent fit for me. If you can, test for a seal that gives bass extension without discomfort. For workouts, check IP rating — IPX4 is fine for sweat and light rain, but heavy outdoor use in storms calls for a higher rating.

3. Consider codecs and device compatibility

If you’re on Android and care about highest-quality streaming, aptX support on the Mx Black helps. For iPhone users, AAC performance is good — but don’t expect aptX benefits on iOS. If you use multiple devices, verify how smoothly the buds switch between them; the Mx Black handles this well enough for normal multi-device scenarios.

4. Evaluate ANC quality against real-world noise

ANC performance is highly contextual. The Mx Black controls low-frequency hum very well — trains, buses, office HVAC — but it is less aggressive with erratic higher-frequency noises like sudden chatter. If your commute consists mostly of steady engine noise, you’ll be happy. If you spend time in environments with lots of stop-and-start noise, you may want to audition different ANC implementations.

5. Look at battery claims vs. real-world usage

Expect slightly less battery than marketing claims when you run ANC and higher volumes. From my testing, the Mx Black’s real-world battery is very usable: a full day of mixed listening is doable without constantly worrying about the case. If you travel a lot, check whether the case’s charge count suits your needs (Mx Black gives about three full recharges in my experience).

6. App and firmware updates matter

A stable companion app and regular firmware updates can significantly improve the experience. The Mx Black’s app added features and stability patches during the months I owned them; that responsiveness is a plus. If a brand releases infrequent updates, budget that into your decision.

7. Price vs. value

Consider what features you actually use. If wireless charging, a balanced sound, and decent ANC are must-haves, the Mx Black offers strong value at its price point. If you prefer the absolute best call performance, higher ANC, or ultra-low latency for competitive gaming, you might pay more for a flagship model.

Final thoughts and conclusion

After several months with the Mx Black, I can say I used them far more than I expected when I first unboxed them. In my experience they hit a pragmatic sweet spot: thoughtful design, comfortable long-wear fit, a balanced and enjoyable sound profile, and ANC that materially improved commuting and travel comfort. The battery life and quick-charge feature genuinely reduced mid-day anxiety, and the wireless charging case was a convenience I grew to appreciate.

That said, no product is perfect. I was surprised by the subtle hiss when ANC is enabled and slightly annoyed by the touch controls occasionally triggering during normal adjustments. The companion app's occasional instability was a minor friction point, though firmware updates improved the situation. If you prioritize the last bit of audiophile detail, the Mx Black won’t replace dedicated high-end monitors; but for most people looking for a reliable, comfortable, and well-rounded pair of wireless earbuds, the Mx Black delivers more than a passable experience — it becomes the set you reach for most days.

In short: I found the Mx Black to be a legitimately useful upgrade over entry-level earbuds and a compelling middle-ground option if you want premium features without flagship pricing. It’s the pair I still keep in my bag, and after months of use it’s the first thing I grab when I leave the house.