Sennheiser 502874 - Manual (Page 9)

Product overview
8
Overview of the indicators and acoustic signals
Meaning of the pictograms for the different LEDs
Indicators on the headphones
Status Meaning
The LED is lit.
The LED flashes once per second.
The LED flashes twice every 5 seconds.
Indicator Status Meaning
Multi-function LED
µ
The rechargeable batteries
are almost flat.
The headphones are in
enrollment mode (searching
for a transmitter to pair
with).
The headphones are in
association mode
(exchanging device
information with the
transmitter).
The headphones receive an
audio signal.
1s
5s
1s
1s
1s
5s