| Feature | Specification |
| Article number (SKU) | 508598 (3.5mm), 800127 (USB-C) |
| Transducer principle | dynamic, closed-back |
| Wearing style | Over-Ear |
| Acoustic principle | closed |
| Adapter Choices | 3.5mm, angled or USB-C |
| Cable length | 1.4 m |
| Weight | 217 g |
| Frequency response (speaker) | 18 Hz to 20,000 Hz |
| Impedance | 18 Ω |
| Transducer size | 9.7 mm |
| Total harmonic distortion (THD) | < 0.5% (1 kHz, 100 dB) |
| Frequency response (microphone) | 100 to 10,000 Hz |
| Microphone pick-up pattern | Omni-directional |
| Wearing style | Over-Ear |
HD 400 Specifications
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