How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want the more comfortable, more controllable pair for long workdays and calls, choose OYEALEX Active Noise Cancelling; if you need the longest possible battery life and the deepest bass thump, choose Monster Active Noise Cancelling. In my opinion, that single split — comfort and call-friendly controls on one side, marathon battery and pure low-end punch on the other — is what decides most buyers who are shopping for calls, travel, and everyday music.
• OYEALEX biggest strength: A 0.52 lb over-ear build with breathable cloth ear muffs, a rotary knob control, and AI call noise reduction — a genuinely comfortable, call-first design.
• OYEALEX biggest trade-off: Its noise reduction depth is rated to -25dB, so it quiets the world rather than erasing it.
• Monster biggest strength: Up to 60 hours of playtime in standard mode and a bass-forward "Pure Monster Sound" tuning that leans hard into deep bass.
• Monster biggest trade-off: Button-only controls and a memory foam/protein leather fit that many people find warmer over a full day than cloth.
• Who OYEALEX is for: Anyone who wears headphones for hours and takes a lot of calls.
• Who Monster is for: Listeners who want maximum playtime between charges and bass-heavy music.
• Deep bass angle: Monster is the more bass-forward tuning; OYEALEX aims for balanced Hi-Fi with deep bass present but not dominant.
The OYEALEX set is built around comfort and control. It weighs in at 0.52 lbs with breathable cloth ear muffs, a pressure-reducing padded headband, and an adjustable telescopic rod, so it can be sized to different head shapes. The over-ear cups are oval and close fully around both ears — the company notes a good seal with no sound leakage. If you've ever pulled a pair of headphones off after three hours because your ears were hot and sore, that cloth-and-lightweight combination is the spec that matters most here.
The control scheme is the other standout. Instead of a row of tiny buttons, OYEALEX uses a rotary knob that handles noise reduction, playback, and call answering in one place, with touch response layered on top. For calls specifically, there's an AI call noise reduction algorithm for voice pickup, and the Bluetooth 5.4 link is rated at 0.06s latency with a 33-foot range. The 40mm titanium-plated drivers are tuned for balanced bass, mid, and treble rather than one boosted frequency, and a 360° spatial audio algorithm widens the soundstage for movies and concerts.
On the noise side, the active noise cancellation is rated to a reduction depth of -25dB and is described as eliminating 96% of background sounds like traffic and office chatter. Battery life is rated at 50 hours, with a 2-hour charge time.
Who should buy it: commuters, office workers, and anyone who spends a lot of the day on calls and wants a headset they can forget they're wearing. Who should skip it: if you want the most aggressive bass tuning or the absolute longest battery figure, this isn't the pick — the balanced tuning and the -25dB noise depth are deliberate choices, not oversights.
Monster's Persona SE ANC is the battery-and-bass play. The headline is playtime: up to 40 hours with active noise cancellation running, and up to 60 hours in standard mode. There's also Type-C fast charging that adds roughly 4 hours of listening from a 5-minute charge — the kind of thing that matters when you grab headphones on the way out the door and realize they're nearly dead. Charging to full takes 2 hours.
The sound profile is openly bass-forward. Monster pairs 40mm drivers with its "Pure Monster Sound" digital audio processing, and the marketing leans hard on big bass and deep bass. If your library is hip-hop, EDM, or anything built on a heavy low end, that tuning is the point. The trade-off is that a bass-forward curve is less neutral than OYEALEX's balanced bass/mid/treble approach, which is a matter of taste rather than a flaw.
Noise cancellation here is rated to block up to 98% of ambient noise via a digital algorithm, toggled by a dedicated ANC button. Controls are push-button only — no rotary knob, no touch surface. The build uses ultra-soft protein leather earcups with memory foam padding, an adjustable headband, and a foldable design for storage. It's slightly lighter on paper at 8 ounces, and it ships with a Type-C cable and a user manual. Connectivity is Bluetooth 5.4 with a 33-foot range. Note there's no 3.5mm jack on the Monster, so it's wireless-only.
Side-by-Side: Which Should You Choose?
• Best for long listening comfort → OYEALEX Active Noise Cancelling. Breathable cloth ear muffs, 0.52 lb weight, pressure-reducing headband.
• Best for calls → OYEALEX Active Noise Cancelling. AI call noise reduction plus a rotary knob for answering without hunting for buttons.
• Best for battery life → Monster Active Noise Cancelling. Up to 60 hours in standard mode versus OYEALEX's rated 50 hours.
• Best for deep bass → Monster Active Noise Cancelling. The tuning is explicitly bass-forward; OYEALEX aims for balance.
• Best for fast top-ups → Monster Active Noise Cancelling. Type-C fast charging gives roughly 4 hours from a 5-minute charge.
• Best for noisy open offices → Monster Active Noise Cancelling on paper, with up to 98% ambient noise blocked versus OYEALEX's -25dB depth.
• Best for wired backup → OYEALEX Active Noise Cancelling. It has a 3.5mm jack; the Monster has none.
• Best for travel storage → Monster Active Noise Cancelling. Foldable design; OYEALEX isn't listed as foldable.
I'd buy the OYEALEX Active Noise Cancelling. For calls — which is where most of us actually live — the rotary knob, the AI call noise reduction, the cloth earcups, and the 3.5mm fallback add up to a headset that's easier to live with day after day. The balanced Hi-Fi tuning with deep bass present but not shouting is a safer default for mixed listening. If your priority is squeezing every hour out of a charge or you want bass you can feel in your chest, the Monster is the better fit, and I won't pretend otherwise. Check the current price on Amazon before you decide, since that can shift the math either way.
OYEALEX, in my opinion, because of its AI call noise reduction algorithm and the rotary knob that handles answering and playback. Monster has a built-in mic, but its controls are push-button only.
Monster is the more bass-forward of the two. It's marketed around "big bass" and "deep bass" with its own digital audio processing, while OYEALEX tunes for balanced bass, mid, and treble with deep bass as one part of the mix.
OYEALEX is rated at 50 hours. Monster is rated at up to 40 hours with ANC on and up to 60 hours in standard mode, with Type-C fast charging for quick top-ups.
OYEALEX has a 3.5mm jack, so you can go wired. The Monster Persona SE ANC is wireless-only — there's no headphone jack on it.
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