Mcirophone:
Size: ￠6.0x5.00mm
Frequency response：20-20KHZ
Ouput Sensitivity：-58dB±2dB

Earphone:
Size:￠20mm
Frequency response：20-20KHZ
Impedance：32 ohm ± 15%
Output sensitivity：20MW/123dB±3dB
Polar pattern:Omni-directional
Jack: 3.5mm *2

Colors: White or Black