Cyber Acoustics Cyber Acoustics ACM-70B 3.5mm Connector Review
The Cyber Acoustics ACM-70B are $13 headphones that make sound. That's their entire purpose. We dug into the data to see if being this cheap is their only virtue.
The 30-Second Version
For $13, they make noise. That's their entire job, and they do it. Just don't expect them to be good at anything else, or to last very long.
Overview
Look, for $13, you're not buying headphones. You're buying a wired audio cable with two foam pads attached. That's the one thing to know. The Cyber Acoustics ACM-70B are the definition of a basic, no-frills, throw-in-the-bag pair. They plug in, they make sound, and that's about it. Our data shows they're surprisingly decent for listening to music or studio monitoring on a budget, but calling them 'headphones' in the same breath as anything on our competitor list feels like a stretch.
Performance
The sound quality is the only real surprise here, and it's a good one. Scoring in the 84th percentile for sound against all headphones in our database is wild for a $13 pair. Don't expect bass that rattles your skull or crystal-clear highs, but for the price, the audio is balanced and gets the job done. Everything else performs exactly as you'd fear: the mic is terrible (36th percentile), the build feels cheap (43rd percentile), and they're just okay for comfort.
Pros & Cons
Pros
- Shockingly good sound for the money. 76th
- Dirt cheap at $13.
- Simple plug-and-play with a 3.5mm jack.
- Lightweight and easy to toss in a bag.
Cons
- Build quality feels like a happy meal toy. 22th
- The microphone is practically useless. 27th
- No features whatsoever—no ANC, no Bluetooth, nada. 33th
- Comfort is mediocre for long sessions.
Specifications
Full Specifications
Design
| Form Factor | On-Ear |
Audio
| Driver Type | 27mm |
| Driver Size | 27 |
| Freq Min | 20 |
| Freq Max | 20000 |
| Codecs | Soft foam ear padsAdjustable headband |
Connectivity
| Wired Connector | 3.5mm |
| Cable Length | 1.83 |
Value & Pricing
At $13, the value proposition is simple: if you need absolute bare-bones audio and have exactly $13, this is worth it. If you can scrape together another $20, you can do significantly better. It's worth the price, but just barely.
vs Competition
Comparing these to a Sony WH-1000XM6 or AirPods Max is like comparing a skateboard to a Tesla. The real competition is in the $20-$40 wired bracket. For studio use, the Koss Porta Pro offers legendary sound for a bit more. For general use, the Monoprice Retro offers better build. These Cyber Acoustics win on price alone, but lose on every other metric.
| Spec | Cyber Acoustics Cyber Acoustics ACM-70B 3.5mm Connector | Sony Sony - WH-1000XM6- Best Wireless Noise Cancelling | Apple AirPods Max Apple - AirPods Max (USB-C) - Midnight | Sennheiser Sennheiser ACCENTUM Plus Wireless Active | JBL JBL Tune 770NC Noise-Cancelling Over-Ear | Bose QuietComfort headphones Bose QuietComfort Wireless Over-Ear Active |
|---|---|---|---|---|---|---|
| Form Factor | On-Ear | Over-Ear | Over-Ear | Over-Ear | Over-Ear | Over-Ear |
| Driver Type | 27mm | Dynamic | Dynamic | Dynamic | Dynamic | Dynamic |
| Driver Size (mm) | 27 | 30 | 40 | 37 | 40 | - |
| Impedance Ohms | - | 48 | 16 | - | 32 | - |
| Wireless | - | true | true | true | true | true |
| Active Noise Cancellation | - | true | true | true | true | true |
| Open Closed Back | - | Closed | Closed | Closed | Closed | Closed |
| Bluetooth Version | - | 5.3 | 5.0 | 5.2 | 5.3 | 5.1 |
| Battery Life Hours | - | 30 | 20 | 50 | 70 | 24 |
Common Questions
Q: What are you actually getting for $13?
You get a pair of extremely basic, wired on-ear headphones. They have foam pads, a plastic adjustable headband, and a 6-foot cable. Think of them as disposable audio—good enough in a pinch, but not a long-term solution.
Q: Can I use these for gaming or calls?
You can, but you shouldn't. Our data ranks them at 23.4/100 for gaming and a dismal 12.7/100 for calls. The microphone is awful. For gaming, even a cheap dedicated headset will be better.
Q: How's the sound quality really?
Honestly, not bad! For music or casual listening, they're fine. The 84th percentile sound ranking is legit for the price. Just don't expect any deep bass or noise isolation.
Who Should Skip This
If you're looking for a primary pair of headphones, or anything with features like Bluetooth or a decent microphone, this isn't it. Go get a Monoprice Retro or save up for a JBL Tune 510BT instead. These are for emergency use only.
Verdict
We can only recommend these if your budget is locked at $13 and you need sound today. They are a functional, last-resort option. For anyone else, save up for a few more weeks and buy something in the $30-$50 range. The jump in quality, comfort, and durability is massive.