Toa HF-250M, Operating Instructions Manual

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5. Speaker volume and microphone sensitivity adjustment
The station's speaker volume and microphone sensitivity can be independently adjusted at the controls,
located under the terminal cover.
Microphone sensitivity control
Speaker volume
6. External microphone or headset connection
An external microphone or headset can be connected for use instead of the handset. Refer to the
illustration below for connection.
Note : If a headset is connected, its operation is essentially the same as that of headset. Likewise, if an
external microphone is connected, its operation is essentially the same as that of the internal
microphone. Accordingly, when wishing the hands-free conversation using the station with an
external microphone, pull out the external microphone plug from the station.
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