COOSII AC01
Its 40mm dynamic drivers and passive noise-isolating over-ear design block up to 85% of ambient sound for focused listening. The enlarged, deeply cushioned ear pads with breathable mesh and a lightweight 289g foldable frame prioritize all-day comfort and portability. This wired headset is best for students and remote workers needing an affordable, durable 3.5mm option for Chromebooks and tablets, though PC users will need an adapter for mic and volume control.
Snapshot
Pros & Cons
Pros
- Strong build (88th percentile) 88th
- Strong comfort (81st percentile) 81st
- Strong social proof (80th percentile) 80th
- Strong mic (68th percentile) 68th
Cons
- Below average connectivity (22nd percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 11 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | over-ear |
| Open/Closed | closed |
| Foldable | Yes |
| Weight | 0.3 kg / 0.6 lbs |
| Ear Cushion | Protein Leather |
| Headband | TPU |
Audio
| Driver Type | dynamic |
| Driver Size | 40 |
| Freq Max | 20000 |
| Impedance | 32 |
| Codecs | AC01 Over Ear Wired Headphones with Microphone, Corded Noise Isolating Stereo Headsets for Adults Teens with Long Cord Wire 3.5mm Plug for Cellphones, Tablets, Laptop, Chromebook (Black Blue) |
| Surround | AC01 Over Ear Wired Headphones with Microphone, Corded Noise Isolating Stereo Headsets for Adults Teens with Long Cord Wire 3.5mm Plug for Cellphones, Tablets, Laptop, Chromebook (Black Blue) | AC01 O |
Noise Control
| ANC | No |
| Transparency | Yes |
Connectivity
| Wireless | No |
| Wired Connector | 3.5mm |
Microphone
| Microphone | Yes |
| NC Mic | Yes |
Features
| Touch Controls | No |
| Water Resistance | Water-Resistant |
vs Competition
| Spec | COOSII AC01 | Bowers & Wilkins Px8 S2 | Sennheiser HDB 630 | Sony ULT WEAR WHULT900N/B | Apple AirPods Max Midnight | Technics EAH-A800 |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | dynamic | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | 40 | 40 | 42 | 40 | 40 | 40 |
| Impedance Ohms | 32 | - | 480 | 314 | 16 | 34 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Open Closed Back | closed | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.3 | 5.2 | 5.2 | 5.0 | 5.2 |
| Battery Life Hours | - | 30 | 60 | 30 | 20 | 50 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| COOSII AC01 | 66.3 | 68.1 | 87.8 | 65.6 | 44.7 | 81 | 22.3 | 80.4 |
| Bowers & Wilkins Px8 S2 Compare | 98 | 99.3 | 95.7 | 99.4 | 76.1 | 53.6 | 97.7 | 98.4 |
| Sennheiser HDB 630 Compare | 98 | 85.3 | 77.7 | 98.2 | 90.7 | 46.5 | 93.8 | 87.5 |
| Sony ULT WEAR WHULT900N/B Compare | 98 | 85.3 | 77.7 | 95.6 | 76.1 | 53.6 | 98.9 | 87.5 |
| Apple AirPods Max Midnight Compare | 98 | 83.2 | 92.4 | 93.2 | 69.8 | 32.3 | 94.4 | 98.4 |
| Technics EAH-A800 Compare | 93.4 | 98.3 | 77.7 | 97.2 | 85.9 | 53.6 | 97.4 | 60.1 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
