New
Sennheiser CX CX 400-II
form factor in-ear
driver type dynamic
26 Overall Score
Price ¥9,123
About This Earbuds
Sennheiser CX CX 400-II — form factor in-ear, driver type dynamic.
- Form factor in-ear
- Driver type dynamic
Overview
Performance
Pros & Cons
Pros
- Strong comfort (71th percentile) 71th
Cons
- Below average connectivity (9th percentile) 9th
- Below average mic (10th percentile) 10th
- Below average user sentiment (15th percentile) 15th
- Below average sound (28th percentile) 28th
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Ear Tips | S, M, L |
| Weight | 0.1 kg / 0.1 lbs |
Audio
| Driver Type | dynamic |
| Impedance | 16 |
Value & Pricing
May 30, 2026 ¥9,123
vs Competition
| Spec | Sennheiser CX CX 400-II | Technics EAH-AZ100 EAH-AZ100 | Bose QuietComfort Ultra 2nd Gen | Sony LinkBuds Fit WFLS910N/B | Jabra Evolve2 Buds Evolve2 Buds USB-C MS | EarFun Air Pro Air Pro 4+ |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | dynamic | Dynamic | Dynamic | dynamic | Dynamic | hybrid |
| Wireless | - | true | true | true | true | true |
| Active Noise Cancellation | - | true | true | true | true | true |
| Bluetooth Version | - | 5.3 | 5.3 | 5.3 | 5.2 | 6.0 |
| Battery Life Hours | - | 8 | 6 | 5.5 | 8 | 12 |
| Case Battery Hours | - | 28 | 18 | 21 | 33 | 54 |
| Water Resistance | - | IPX4 | IPX4 | IPX4 | IP57 | IP55 |
| Multipoint | - | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| Sennheiser CX CX 400-II | 29.4 | 9.6 | 33.4 | 27.9 | 47 | 70.9 | 15.3 | 9.1 | 49 |
| Technics EAH-AZ100 EAH-AZ100 Compare | 96.6 | 96.9 | 79 | 99.1 | 79.1 | 93.4 | 0 | 99.8 | 89.3 |
| Bose QuietComfort Ultra 2nd Gen Compare | 96.6 | 80.5 | 79 | 96.4 | 47 | 93.4 | 79.1 | 97.8 | 94.4 |
| Sony LinkBuds Fit WFLS910N/B Compare | 96.6 | 65.9 | 79 | 98 | 66.4 | 93.4 | 79.1 | 97.3 | 69.3 |
| Jabra Evolve2 Buds Evolve2 Buds USB-C MS Compare | 88.5 | 96.9 | 98.8 | 60.7 | 82.8 | 93.4 | 0 | 92.5 | 95.9 |
| EarFun Air Pro Air Pro 4+ Compare | 96.6 | 96.9 | 91.4 | 99.8 | 96 | 70.9 | 97.2 | 99.3 | 80.1 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
