Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      UTRA20H3.4DJMT Product Number UTRA20H3.4DJMT Description Size: 20mm Height: 3.4mm Sound Pressure Level: 87dB Resonance Freq(fo): 850 ±15% Rated Power:0.8W Max Power: 1W Enquiry Send Enquiry Specification   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)