Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      VA501W-04 Product Number VA501W-04 Description Enquiry Send Enquiry Specification Size (mm) ø 138.5 Rated Impedance (Ω) 4、8(±15%) Rated Power (W) 20 Max Power (W) 40 Resonant Frequency (Hz) 75 ± 20% Frequency Range (Hz) fo-13000 Sound Pressure Level (dB) 89±3 Magnet Size (mm) ø 70x32x15 ø 60x32x10   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)