Earphone :- Unit Driver: 10mm; Frequency Response: 20Hz-20KHz; Impedance: 32ohm; Sensitivity: 112dB(at 1K Hz); Plug: 3.5mm; Cable: 1.0m OEM is
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Mp3 Earphone :- Specification: Speaker diameter: 10~15mm Impedance: 32 ohms Sensitivity: 104+/-2dB, S. P. L. At 1kHz Frequency response:
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