| DESIGN AND DIMENSIONS | Koss UR 21 | - |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | - |
|---|---|---|
| Weight | 170 g | - |
| SOUND QUALITY | Koss UR 21 | - |
|---|
| Headphones Form Factor | Full size | - |
|---|---|---|
| Headphones Technology | Dynamic | - |
| Connectivity Technology | Wired | - |
| Sound Output Mode | Stereo | - |
| Frequency Response | 40 - 20000 Hz | - |
| Total Harmonic Distortion (THD) | 0.4% | - |
| Sensitivity | 90 dB | - |
| Impedance | 32 Ohm | - |
| Magnet Material | Ferrite | - |
| CABLE | Koss UR 21 | - |
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| Cable Type | Headphones cable - 1.2 m | - |
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| CONNECTIONS | Koss UR 21 | - |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | - |
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| OTHERS | Koss UR 21 | - |
|---|
| Included Accessories | 6.3 mm (1/4") stereo adapter | - |
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