User's Manual

To change between toggle and momentary:
Hold the PUSH button and press the SELECT button. (Test the microphone
to confirm the change.)
Hold
To change between push-to-talk and push-to-mute:
1. Set the button for momentary operation.
2. Hold the SELECT button and press the PUSH button.
Hold
Mute Indicator
MX890
The desktop base illuminates the gooseneck microphone LED to indicate
whether the microphone is active or muted. Refer to the following table:
MX890 Status Indicator
Microphone
Status
MX405 / MX410
Indicator
MX405R / MX410R Light
Ring
Active Green Red
Muted Red/Flashing Green* Off/Flashing*
*To toggle between off and flashing, press PUSH and ON/OFF simultaneously.
MX690
The bi-color LED on the top of the microphone indicates whether the mi-
crophone is active or muted.
The LED can also be set to flash when muted.
MX690 Status Indicator
Display Mode Status Indicator
Steady (as supplied) Active = Green
Muted = Red
Flashing Active = Green
Muted = Flashing Green
Battery
Installation
1. Open the battery compartment as shown.
2. Insert two 1.5 V "AA" batteries. Make sure the +/– terminals are prop-
erly oriented.
Note: Alkaline batteries last up to 8 hours. Rechargeable, carbon-
zinc, and zinc-chloride batteries provide less operating time.
Power Meter
The battery meter on the LCD shows remaining battery life.
Low Power Indicator
Steady Red: Power low. Replace batteries immediately
Pulsing Red: Batteries dead. Transmitter cannot be turned on until
batteries are replaced.
Mute Button
The mute button can be configured for toggle or momentary operation.
Toggle (as supplied)
The PUSH button toggles the microphone between active and muted states.
Note: The microphone always powers up in the active state.
Momentary
There are two types of momentary operation:
Push-to-Mute: The microphone is muted only while the button is pressed
and held.
Push-to-Talk: The microphone is active only while the button is pressed
and held.
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