Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      4015SN Product Number 4015SN Description Ø4.0x1.5(H)mm Enquiry Send Enquiry Specification Sensitivity Range (dB) (0dB=1V/Pa. 1KHz) -40��3dB ; -42��3dB ; -44��3dB ; -46��3dB Directivity Omnidirectional Impedance <2.2k�[ Current Consumption Max. 0.5mA Standard Operation Voltage 2V DC Sensitivity Reduction Within -3dB at 1.5v S/N Ratio (dB) >58dB   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)