Softears Volume

Specification: 
Impedance:5Ω@ 1kHz
Sensitivity:123.7dB/Vrms@1kHz
Effective frequency response:20- 20kHz (IEC60318-4)
Frequency range: 8- 40kHz(1/4inch free field microphone,-5dB)
THD:<1%@ 1kHz
Shell: imported medical resin+aluminum alloy
Driver:10mmdynamic +2 balanced armature
Dynamic diaphragm: PU flexible suspending+beryllium-plated