SPECIFICATION
▷ Microphone (M-138/G)
- Type : Dynamic Microphone
- Sensitivity : more than -56 dB (1 KHz)
- Impedance : 150 ± 15 Ohms (1 KHz)
- Frequency : 300∼3,500 Hz
▷ Earphone (M-139/G)
- Type : Dynamic Earphone
- Sensitivity : 105 ± 3 dB (1 KHz)
- Impedance : 1,000 Ohms (1 KHz)
- Frequency : 100∼3,500 Hz
▷ Connector : 5 Pin U-229/U
▷ Cable : Rubber Jacket Spiral Cord
▷ With : Push to talk Switch