vs
4.0Noise control & calls4.0
Why is HD 400U better than StereoMan 2?
HD 400U has no measurable advantages in this pair.
Why is StereoMan 2 better than HD 400U?
StereoMan 2 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | Over-ear | Over-ear |
| Ear cup design | Closed-back | — |
| Driver type | Dynamic | — |
| Lowest frequency | 18 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Impedance | 18 Ω | — |
| Sensitivity | 120 dB | — |
| Noise control | ||
| Active noise cancelling | No | No |
| Battery & charging | ||
| Battery life | — | 10 h |
| Battery capacity | — | 1,400 mAh |
| Connectivity | ||
| Wireless | Yes | No |
| USB-C | Yes | — |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | — | 450 g |
| Foldable | — | Yes |
| Colours | — | Black |
