telephone headset
can add a volume controller switch
●Speaker unit:
Speaker Dia: 30 mm
Frequency respond: 20Hz-20KHz
Impedance: low impedance
Max. Input Power: 100Mw
Cable length: 1.5m±10%
Color: black
●Microphone unit:
Frequency respond: 300Hz-18KHz
Impedance: low impedance
Sensitivity: 1KHz -62db±3Db
With rotary boom mic
Comfortable wearing, easy to carry