Sennheiser HD 4.20s
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| Design: | Full size |
| Description: | Design: full-size, device type: wired headphones, design features: L-shaped plug, microphone, foldable design, plug connector: mini jack 3.5 mm, acoustic design type: closed |
| Additional Information: | Answer/End Call: Yes |
| Plug connector: | mini jack 3.5 mm |
| Harmonic coefficient: | 0.5 % |
| Impedance: | 18 ohm |
| Sensitivity: | 118 dB |
| Design features: | L-plug, microphone, foldable design |
| Device type: | Wired headphones |
| Mount type: | Headband |
| Maximum playback frequency: | 20000 Hz |
| Minimum repeatable frequency: | 18 Hz |
| Technology: | Dynamic |
| Type of acoustic design: | Closed |
| Sensitivity options: | DB/V |