SIMOLIO SM-904
The 3-level volume limiter (85/94/104dB) and passive noise isolation prioritize hearing protection and focus, while the memory stainless steel headband adds durability for daily use. A built-in HD microphone and a sharing jack allow hands-free calls and daisy-chaining another headphone without a splitter. These headphones are best for parents seeking a sturdy, wired headset for school-age children using Chromebooks or tablets in classroom and travel settings.
Snapshot
Pros & Cons
Pros
- Strong build (92nd percentile) 92nd
- Strong social proof (88th percentile) 88th
- Strong comfort (77th percentile) 77th
- Strong user sentiment (71st percentile) 71st
Cons
- Below average sound (20th percentile)
- Below average anc (32nd 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 | ultra-soft ear cushions |
| Headband | memory stainless steel |
Audio
| Impedance | 32 |
| Codecs | SIMOLIO Wired Headphones for Kids, Girls School Headphone with Microphone & Safe Volume Limiter & Share Port, Foldable Adjustable Over Ear Headsets for Tablet Travel Teens Smartphone (Purple) |
| Surround | SIMOLIO Wired Headphones for Kids, Girls School Headphone with Microphone & Safe Volume Limiter & Share Port, Foldable Adjustable Over Ear Headsets for Tablet Travel Teens Smartphone (Purple) | SIMOLI |
Noise Control
| ANC | No |
Connectivity
| Wireless | No |
| Wired Connector | 3.5mm |
| Cable Length | 1.5 |
Microphone
| Microphone | Yes |
| NC Mic | Yes |
| Boom Mic | No |
| Mic Pattern | Unidirectional |
Features
| Volume Limiting | Yes |
| Gaming Mode | Yes |
vs Competition
| Spec | SIMOLIO SM-904 | TOZO HT2 | Truefree HF-10 | HAYLOU S30 | SoundPEATS Cove Pro | QCY H3 |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | - | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | - | 40 | 40 | 40 | 40 | 40 |
| Impedance Ohms | 32 | 32 | 20 | 32 | 32 | 32 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Open Closed Back | closed | closed | closed | closed | closed | - |
| Bluetooth Version | - | 5.3 | 6.0 | 5.4 | 6.0 | 5.4 |
| Battery Life Hours | - | 60 | 125 | 80 | 95 | 60 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| SIMOLIO SM-904 | 32.1 | 68.2 | 92.4 | 20.1 | 44.7 | 77.3 | 70.6 | 47.4 | 87.5 |
| TOZO HT2 Compare | 93.4 | 83.2 | 95.7 | 99.1 | 90.7 | 81 | 87.1 | 83.1 | 87.5 |
| Truefree HF-10 Compare | 93.4 | 85.3 | 95.7 | 83.1 | 99.8 | 81 | 87.1 | 95 | 93.9 |
| HAYLOU S30 Compare | 93.4 | 99.7 | 77.8 | 99.1 | 96.2 | 46.5 | 70.6 | 98.5 | 98.4 |
| SoundPEATS Cove Pro Compare | 98 | 96.1 | 98.8 | 91.4 | 98.1 | 87.7 | 0 | 86.1 | 67.2 |
| QCY H3 Compare | 93.4 | 83.2 | 35 | 86.8 | 87.1 | 87.7 | 87.1 | 95 | 87.5 |
Price
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
