Product serial number
Impedance:32(ohm)+/-15% at 1kHz.
Sensitivity:-58+/-2dB F=1kHz P=1Pa
Min Operation Voltage:DC1.0V
Inner Ear Type, VR, and On/Off Button, can be made to your technical and color description.
Closed-type,In-the-Ear design reduce outside noise for high-intensity listening, helping to generate powerful, resonant bass response. Soft, Silicon Rubber Earbuds are used for Stable and Comfortable Fit in the ears.
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