SpecificationsSpeaker size: 10mm Sensitivity: 94±3dB (at 1kHz 1mW) Impedance: 16±10%Ω Frequency range: 20-20000HzPlug: 3.5mmMic: 4.0*1.5mmSensitivity: -42±4dB (0dB=1V/pa,1KHz)Frequency range: 100Hz-10kHzCable length: 1.2m