Sennheiser RS 130 Notice D'emploi page 19

Turning the acoustic signals (beeps) on and off
The acoustic signals of the headphones can be turned on or off as
follows:
Turn the headphones on.
Press the TUNE button for 5 seconds.
Turn the headphones off.
If the acoustic signals are turned on, the headphones produce a
sequence of beeps at turn-off. If no beeps are produced, the
acoustic signals are now turned off.
If problems occur...
Check if all jack plugs are connected correctly.
Make sure that the batteries are charged.
Check if the batteries are inserted correctly and that the polarity
is correct.
Check if the headphones and sound source are turned on and
that the volume of the headphnes and sound source is sufficient.
Move closer to the transmitter.
Choose a different channel on the transmitter.
Press the TUNE button again.
Reset the system:
Remove the rechargeable batteries from the headphones and –
at the same time – interrupt the power supply of the transmitter
for at least 30 seconds.
Some electronic devices (e.g. televisions) can cause interference,
which can be eliminated by increasing the distance between the
transmitter and the interference source.
Try to operate the transmitter with a different sound source.
Should the problem persist, please contact your authorized dealer
for assistance.
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