Microphone : High Sensitivity Electret Condenser Mic.
*IC : 2 pieces
*Transistor : 20 pieces
*Diode : 13 pieces
*Compressor Level : HIGH : 45dB LOW : 35dB
*Output Voltage : COMP : 0 - 30 mV ( RMS ) MANUAL : 0 - 70 mV ( RMS )
*Matching Output Impedance : 500 ohms - 100k ohms
*Power Voltage : Battery : DC 3 V ( UM3 x 2 pieces )
Mic. Cable ''D'' series : DC 5 - 9 V
*Current Consumption : at Receiving : 3 mA, Transmitting : 6 mA ( approx )
*Alarm sound : approx. 4.5KHz Intermittent Tone
*Flexible ( Gooseneck ) Pipe : φ 8mm, ( Length : 150mm )
*External Size : 182 (W) x 130 (D) x 322 (H) mm
*Weight : approx 750 g ( Not included dry battery )
