Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      NT3558F-01 Product Number NT3558F-01 Description Enquiry Send Enquiry Specification Size (mm) 35x58 Rated Impedance (Ω) 4~25(±15%) Rated Power (W) 4 Max Power (W) 8 Resonant Frequency (Hz) 400 ± 20% Frequency Range (Hz) fo-20000 Sound Pressure Level (dB) 89±3 Magnet Size (mm) ø 12.5x5   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)