Speaker Spec 
Drivers > Ø40mm x 2 
Sensitivity(S.P.L) > 105±3dB @ 1KHz
Impedance > 32Ω
Frequency Response > 20Hz-20KHz
Mic Spec
Mic Dimension >Ø6.0 × 3.0mm 
Directivity > Omnidirectional
Impedance > ≤2.2kΩ
Sensitivity > -36±3dB @ at 1KHz