The linear microphone and volume control, the ultra thin unit has a diameter of 40mm; The expression of treble, middle and bass is balanced and exquisite with broad volume range
Feel THe Nature Voice

For music
speaker and wire�G
Speaker Diameter:�p40mm
Speaker Resistance:32�[
Max .Input Power�G 20mw
Frequency:100Hz-20KHz
Cable length:2.2m
Sensitivity�G113dB��3dB
Plug�G �p3.5
wire material�GPVC
wire color: black
Microphone parameter�G
MIC outer pathway�G�p6.0mm
microphone impedance�G2.2K
microphone sensitivity�G -45dB��3dB
the microphone voltage criterion:2.0V
the microphone frequency range:20Hz -20KHz