Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      110V SERIES Product Number 110V SERIES Description Enquiry Send Enquiry Specification Rated Voltage ( V ) 110 Operating Voltage ( V ) 100-130 Resonant Frequency (KHz) 50 Operating Temperature Range (℃) -30 ~ +70 Weight 22g Current Consumption (mA) ≦30 Coil Resistance (Ω) 4200 ± 10% Sound Ouput at 10cm (dB) ≧80   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)