Cardo scal-rider fm User Manual

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9. Understanding the Status Lights and Sound Signals
Status Lights
The headset uses the following Status Lights to display its state
Status Light 
State
None  
Headset is off or Status Light is disabled
Alternating Red/blue flashes  Entering pairing mode
1 blue flash every 3 seconds  Standby – No call in progress
2 blue flashes every
Call being initiated or in progress
3 seconds
1 red flash every 3 seconds 
Standby and battery is low
2 red flashes every 3 seconds Call being initiated or in progress and battery is low
Tones
With the exception of the actions described in the following table, all
actions are followed by a single tone to confirm that the headset has
accepted the command.
Action Tone
Mute 
On/off tone and mute reminder tone every 20
seconds
Radio station changed 
One to six short beeps
(according to the station
number) 
25