Thomson HED420
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| Design: | Full size |
| Description: | Design: full-size, device type: wired headphones, design features: foldable design, plug connector: mini jack 3.5 mm, acoustic design type: closed |
| Additional Information: | Vibration.; Cable connection: bilateral; Case included: yes; Gold-plated connectors: yes |
| Plug connector: | mini jack 3.5 mm |
| Impedance: | 32 ohm |
| Sensitivity: | 99 dB |
| Included: | Adapter 6.3 mm |
| Length of cable: | 1.3 m |
| Design features: | Folding design |
| Device type: | Wired headphones |
| Mount type: | Headband |
| Max power: | 120 mW |
| Maximum playback frequency: | 20000 Hz |
| Minimum repeatable frequency: | 20 Hz |
| Technology: | Dynamic |
| Membrane diameter: | 30 mm |
| Type of acoustic design: | Closed |