Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      RA20H5.4A8DJ13C Product Number RA20H5.4A8DJ13C Description Enquiry Send Enquiry Specification Rated Impedance (Ω±15%) 8 Size (mm) Dia 20 Size (mm) Height 5.4   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)