Impedance:32(ohm)+/-15% at 1kHz.
Sensitivity:-58+/-2dB F=1kHz P=1Pa
Min Operation Voltage:DC1.0V
Sizes-all-in-one earbud design to accommodate wider range of ears; bulit in 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.