Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      UT169H3.0MTBOX Product Number UT169H3.0MTBOX Description Sound Pressure Level: 85dB Resonance Freq(fo): 900 ±15% Rated Power:0.5W Max Power: 1W Enquiry Send Enquiry Specification   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)