Headphones Koss Porta Pro
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| Weight: | 79 g |
| Equipment: | Headphones, case |
| Design: | Invoices |
| Description: | Design: on-ear, device type: wired headphones, design features: straight plug, foldable design, plug connector: mini jack 3.5 mm, acoustic design type: open |
| Plug connector: | mini jack 3.5 mm |
| Harmonic coefficient: | 0.2 % |
| Impedance: | 60 ohm |
| Sensitivity: | 101 dB |
| Length of cable: | 1.2 m |
| Design features: | Straight plug, foldable design |
| Device type: | Wired headphones |
| Mount type: | Headband |
| Maximum playback frequency: | 25000 Hz |
| Minimum repeatable frequency: | 15 Hz |
| Technology: | Dynamic |
| Type of acoustic design: | Open |
| Sensitivity options: | DB/mW |
| Number of drivers: | 1 |