Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      NA200T-04 Product Number NA200T-04 Description Enquiry Send Enquiry Specification Size (mm) ø50 Rated Impedance (�[) 4~50 (��15%) Rated Power (W) 2 Max Power (W) 4 Resonant Frequency (Hz) 1500 �� 20% Frequency Range (Hz) fo - 1500 Sound Pressure Level (dB) 88 �� 3 Magnet Size (mm) ø12.5x2 Gasket Material Rubber, paper   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)