Front controls, Front controis – Uniden HH979XL User Manual
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FRONT CONTROLS
Built-In Speaker - Audio Output
Built-In Microphone - Speak into the microphone when
transmitting.
Speaker Jack - Connect optional external speaker here.
Microphone Jack - Connect optional external microphone
here.
DTMF Keypad - Used when entering DTMF data, such as
an access code or telephone number. Or when using
special Seaphone Function.
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HH979XL