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The Sony MDR-J120 clip-on sporting activity headphones offer an extremely lightweight open-air design, extended frequency reproduction and a secure fit.
| Type | Open-Air Dynamic Clip-On Stereo Headphones |
| Frequency Range | 18 Hz - 22 kHz |
| Impedance | 16 Ohms |
| Sensitivity | 104dB/mW |
| Maximum Input Power | 50mW |
| Connectors | 1 x 1/8" Right-Angle Stereo Mini |
| Cable Length | 5' (1.5 m) |
| Weight | 0.35 oz (9.9 g) |