How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a plug-and-play headset you can wear for hours of calls, classes or office chat, choose Cyber Acoustics AC-840; if you need a dedicated desktop mic that captures studio-style voice and musical detail with lighting and live monitoring, choose MOERTEK USB Gaming Microphone.
• Cyber Acoustics AC-840 — biggest strength: an all-in-one mono headset with a noise-cancelling boom mic, in-line volume and mute, and a lightweight leatherette-padded fit built for long sessions.
• Cyber Acoustics AC-840 — biggest trade-off: it is a single-ear, voice-first design, so it is not meant for stereo music or immersive game audio.
• MOERTEK USB Gaming Microphone — biggest strength: a 192kHz/24bit cardioid condenser mic with switchable cardioid/omnidirectional pickup, RGB lighting, tap-to-mute and a headphone jack for monitoring.
• MOERTEK USB Gaming Microphone — biggest trade-off: it is a desktop microphone only, so you still need separate headphones or speakers to hear anything.
• Who each is for: pick the AC-840 for talking to people all day; pick the MOERTEK for recording, streaming and voice work where audio quality and control matter.
The AC-840 is a communications tool, not an entertainment product. Everything about it points one direction: getting your voice into a call cleanly and comfortably. The unidirectional noise-cancelling microphone is aimed at speech and voice recording in "less than ideal" environments — think a shared office, a busy classroom, or a home desk next to a noisy street. The leatherette ear cushion and adjustable headband are built for the kind of wear where you forget you have it on, and the ambidextrous boom arm means left- and right-handed users both get a workable mic position.
Connectivity is about as simple as it gets. USB plug-and-play over a standard USB port works across Windows PCs, Macs and Chromebooks, and the in-line controller puts volume and mic mute right on the cable where you can find them without looking. That inline mute is the quiet hero here — in a classroom or a support queue, being able to kill your mic instantly is worth more than any spec sheet number. The plastic enclosure and 0.09 kg weight keep it light, and a one-year limited warranty covers the basics.
MOERTEK USB Gaming Microphone: Who It's For
The MOERTEK CM15 is the opposite philosophy: it does one job — capturing audio — and it goes deep on that job. The headline number is 192kHz/24bit sampling, which is a genuinely high-resolution capture spec, paired with -38dB±3dB sensitivity and a 20Hz–20kHz frequency response. In plain terms, it is designed to preserve detail and dynamics rather than just make your voice intelligible on a call. For voiceovers, singing, podcasts or instrument recording, that headroom matters.
The two polar patterns are the smartest feature. Cardioid focuses on what is in front of the mic and rejects off-axis noise, which is exactly what you want for solo streaming, gaming commentary or a single-host podcast. Omnidirectional picks up from all directions, which flips it into a room mic for multi-person podcasts or conference calls. Being able to switch between those two use cases with one desktop device is real flexibility, not marketing filler.
Around that core sit the convenience features: tap-to-mute on the top of the mic for instant silence mid-stream, a built-in headphone jack for zero-latency monitoring, and a gain knob on the base for quick level riding. RGB lighting with seven selectable colours is there for the aesthetic — genuinely useful if you are on camera and want your setup to look intentional. It is USB Type-C, plug-and-play, corded, and compatible with PS4/PS5, Windows and macOS machines, plus most streaming and conference software.
Who should buy it? Streamers, gamers who talk more than they listen through a headset, podcasters, singers and anyone recording voice for video. Who should skip it? People who want a single device on their head. This is a desktop mic — you will be reaching for separate headphones, and it takes up desk space that a headset never does.
• Best for all-day calls and classes → Cyber Acoustics AC-840. The adjustable headband, leatherette cushion and lightweight build are made for wearing, not just owning.
• Best for recording quality → MOERTEK USB Gaming Microphone. 192kHz/24bit capture with -38dB±3dB sensitivity is a different tier of audio detail than a voice headset.
• Best for quick mic muting while working → Cyber Acoustics AC-840. In-line push-button mute sits on the cable; on the MOERTEK you tap the top of the mic instead.
• Best for solo streaming and gaming commentary → MOERTEK USB Gaming Microphone. Cardioid mode plus tap-to-mute plus RGB is a streamer's checklist in one box.
• Best for multi-person podcasts or group calls → MOERTEK USB Gaming Microphone. Omnidirectional mode is the feature the AC-840 simply does not have.
• Best for zero-setup, one-cable simplicity → Cyber Acoustics AC-840. Plug into USB and you have mic plus audio in one device, no headphones required.
• Best for live monitoring while recording → MOERTEK USB Gaming Microphone. The built-in headphone jack lets you hear yourself without delay.
• Best for shared or noisy rooms → Cyber Acoustics AC-840. A noise-cancelling boom mic close to your mouth does more for intelligibility than a desktop mic across the desk.
In my opinion, these two are not really competitors — they are answers to different questions. If your day is meetings, teaching or support calls and you want to put something on your head and forget about it, I would buy the Cyber Acoustics AC-840. If your goal is to sound good on a recording or a stream and you already own headphones, I would buy the MOERTEK USB Gaming Microphone — the 192kHz/24bit condenser, dual polar patterns and monitoring jack are the parts that actually change how you sound. Buy for the job you do most, not the spec sheet that looks better.
It works for voice chat, since it is USB plug-and-play with a noise-cancelling mic and in-line mute. But it is a mono single-ear headset, so it is not the pick for stereo game audio or immersion.
MOERTEK lists compatibility with PS4/PS5, desktop and laptop systems running Windows or macOS, and describes it as perfect for Xbox and most streaming and conference software. Check your specific console setup before buying.
On paper, the MOERTEK. A 192kHz/24bit condenser with -38dB±3dB sensitivity and cardioid isolation is built for detailed capture, while the AC-840's mic is engineered for clear speech in noisy rooms rather than studio fidelity.
Yes — it is a desktop microphone, not a headset, so you need separate headphones or speakers. The upside is a built-in headphone jack for monitoring your own voice while recording.
That depends on what you need it for, and prices change, so check the current price on Amazon before deciding. In my opinion the AC-840 is the smarter buy if you only need calls, and the MOERTEK is worth it if recording quality is the point.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.