The unit is powered by the system host. The input voltage is 18V DC, which is a safe range. The chairman microphone has the priority function of forcibly cutting of the speaking of the representative unit. The unit has a single button and indicator light, which cancontrol the speaking status freely. When the phone is turned on, the red light ring emitslight at the same time, which clearly indicates the position ofthe speaker. Capacitive microphone core, the tube is designed to be wound and has a replaceable windshield. The microphone rod is available in an extended version. The number of chairman units in the system is not limited and can be placed any in the loop. The chairman is not under the control of other chairman. (mikrafonlar)

Frequency response: 100-16000Hz

Sensitivity: -40dB ± 2 dB

Pickup distance: 20~80cm