Using the CP Wireless Expansion Mic CPW90
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The CPW90 is fully charged.
The CPW90 is being charged.
Fast flashing red 3 times
and then off
The battery capacity is too low to turn on the CPW90.
The battery capacity is less than 10%.
If you tap the mute button, the battery indicator LED on the
CPW90 is still off, it means the CPW90 is turned off.
CPW90 Working Frequency
For reference, the Frequency/Channels of CPW90 used in each Region are tabulated below:
RF Carrier Index (DECT tester Numbering)