Shure MX690 - Power Meter; Low Power Indicator; Mute Button; Toggle (as Supplied)

Shure Incorporated
6/13
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.
To change between toggle and momentary:
Hold the PUSH button and press the SELECT button. (Test the microphone to confirm the change.)