AKG K 309
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| Weight: | 5 g |
| Design: | Liners |
| Description: | Design: in-ear, device type: wired headphones, design features: straight plug, plug connector: mini jack 3.5 mm, acoustic design type: semi-open |
| Additional Information: | Oxygen-free copper cord: yes |
| Plug connector: | mini jack 3.5 mm |
| Impedance: | 32 ohm |
| Sensitivity: | 124 dB |
| Length of cable: | 1m |
| Design features: | Straight plug |
| Device type: | Wired headphones |
| Mount type: | Without attachment |
| Max power: | 15 mW |
| Maximum playback frequency: | 20000 Hz |
| Minimum repeatable frequency: | 18 Hz |
| Technology: | Dynamic |
| Type of acoustic design: | Semi-open |
| Sensitivity options: | DB/V |