Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      LET9670 Product Number LET9670 Description Ø12x7.5(H)mm; Enquiry Send Enquiry Specification Rated Voltage ( V ) 1.5 Operating Voltage ( V ) 1~2 Rated Current (mA) ≦70 Sound Ouput at 10cm (dB) ≧85 Coil Resistance (Ω) 5.5 ± 1 Resonant Frequency (KHz) 3.1 Operating Temperature Range (℃) -25 ~ +70 Storage Temperature Range (℃) -30 ~ +85 Weight 1g   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)