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7.2Noise control & calls4.0
Why is QuietComfort 45 better than HD 400 Pro?
- Active noise cancellingYes · HD 400 Pro: No
Why is HD 400 Pro better than QuietComfort 45?
HD 400 Pro 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 | — | 6 Hz |
| Highest frequency | — | 38,000 Hz |
| Impedance | — | 120 Ω |
| Noise control | ||
| Active noise cancelling | Yes | No |
| Transparency / ambient mode | Yes | — |
| Noise reduction for calls | Yes | — |
| Battery & charging | ||
| Battery life | 24 h | — |
| Fast charging support | Yes | — |
| Connectivity | ||
| Wireless | Yes | No |
| Bluetooth version | 5.1 | — |
| 3.5 mm jack / AUX | Yes | Yes |
| Design & build | ||
| Weight | — | 240 g |
| Colours | — | Black |
