... 15% at 1KHz, 1Vr Dynamic Receiver R10F2-32-11Impedance32±15%Ω at1.0KHz,1Vrms2Rated Input Power10mW3Max Input Power20mW4Buzzes & RattlesMust be free ... audible noise, From 300-3400Hzfrequency range, Input: 179mV5Sound Pressure Level106±3 dB at 1.0KHz,0dB ... =20μPa,179mV6DistortionNot exceed 5% at 1KHz, Input: 179mV7Operating Temperature-20+558Store Temperature-30+609Net WeightApprox 1g ...