Mcirophone:
Size: ￠6.0x2.00mm
Frequency response：20-16KHZ
Ouput Sensitivity：-58dB±2dB

Earphone:
Size:￠13mm
Frequency response：20-20KHZ
Impedance：32 ohm ± 15%
Output sensitivity：3MW MAZ 5MW/100dB±3dB
Polar pattern:Omni-directional
Jack: 3.5mm *2