MAS CARNEY TH9
The built-in DAC chip and 120Ω impedance deliver clear, reliable audio directly through the USB-C port, bypassing the need for a headphone jack. The semi-in-ear design eliminates silicone tips for all-day pressure-free comfort, while the inline controls and microphone add practical functionality for calls. These are best for students and commuters needing an affordable, no-fuss wired option for online classes and casual listening on modern smartphones.
Snapshot
Pros & Cons
Pros
- Strong comfort (72nd percentile) 72nd
Cons
- Below average connectivity (14th percentile)
- Below average sound (30th percentile)
- Below average anc (32nd percentile)
- Below average build (35th 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 12 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | semi-in-ear |
| Wearing Style | semi-in-ear |
| Weight | 0.1 kg / 0.1 lbs |
Audio
| Impedance | 120 |
Noise Control
| ANC | No |
| Transparency | No |
Connectivity
| Wireless | No |
| Multipoint | No |
Earbud Battery
| Charging | USB-C |
Case Battery
| Case Charging | USB-C |
| Wireless Charging | No |
Microphone
| Microphone | Yes |
| NC Mic | No |
Features
| Touch Controls | No |
| Gaming Mode | No |
| Bone Conduction | No |
vs Competition
| Spec | MAS CARNEY TH9 | Technics EAH-AZ100 EAH-AZ100-N | Bose QuietComfort Ultra 896637-0010 | Sony WF-1000XM6 | JBL Live Beam 3 | EarFun Air Pro TW230B |
|---|---|---|---|---|---|---|
| Form Factor | semi-in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | - | dynamic | dynamic | dynamic | dynamic | dynamic |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Bluetooth Version | - | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 |
| Battery Life Hours | - | 8 | 6 | 8 | 12 | 9.5 |
| Case Battery Hours | - | 28 | 18 | 24 | 48 | 40 |
| Water Resistance | - | IPX4 | IPX4 | IPX4 | IP55 | IP55 |
| Multipoint | false | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| MAS CARNEY TH9 | 31.6 | 43 | 34.6 | 30 | 47.1 | 71.6 | 64.1 | 13.6 | 61.3 |
| Technics EAH-AZ100 EAH-AZ100-N Compare | 97.3 | 97.2 | 80.7 | 99 | 81.5 | 71.6 | 96.9 | 99.8 | 72 |
| Bose QuietComfort Ultra 896637-0010 Compare | 97.3 | 91.2 | 80.7 | 96.7 | 47.1 | 94.2 | 91.6 | 97.9 | 89.6 |
| Sony WF-1000XM6 Compare | 97.3 | 99.8 | 80.7 | 88.5 | 78.4 | 71.6 | 49.3 | 97.9 | 80.3 |
| JBL Live Beam 3 Compare | 97.3 | 97.2 | 91.7 | 81.9 | 94.9 | 94.2 | 49.3 | 97.9 | 80.3 |
| EarFun Air Pro TW230B Compare | 90.1 | 97.2 | 91.7 | 89.3 | 87.9 | 71.6 | 96.9 | 93.2 | 89.6 |
Price
Value & Pricing
Amazon.co.jp 1 offer From ¥749
We started tracking prices for this product on May 30, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
