Sennheiser EK 1038 Instructions For Use Manual page 38

SKP 100 G2 / SKP 500 G2 plug-on transmitters
Betriebs- und Batterieanzeige
The red LED (LOW BAT/ON) provides information on the current
operating state of the plug-on transmitter:
Red LED lit up: The plug-on transmitter is switched on and the
capacity of the batteries/BA 2015 rechargeable battery is suffi-
cient.
Red LED flashing:The batteries are/the BA 2015 rechargeable bat-
tery is going flat (LOW BAT)!
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