Home Company Profile Factory Profile Our Products Contact Us News     Speaker Microphone Transducer Buzzer Plate Receiver                      LPT4113 Product Number LPT4113 Description Ø41x1.3(H)mm; Enquiry Send Enquiry Specification Resonant Frequency (Hz) 20000 ± 500 Operating Temperature Range (℃) -20 ~ +70 Storage Temperature Range (℃) -30 ~ +80 Sound Output at 50cm (dB) ≧90 with 2.83Vrms, 22KHz sine wave Weight 5.6g Operating Voltage ( Vrms ) 1~10 Rated Voltage (Vrms ) 2.83   Speaker Condenser Microphone Buzzer & Transducer Buzzer Plate Receiver Copyright 2004 by Union Team Limited (Group)