20 Most Recent Sennheiser RS 120 Consumer Headphones Questions & Answers

I had the same problem when I plugged it into a new HDTV. The problem was that the sound on the TV was set too low. The transmitter has a feature that automatically turns off when the signal is off or too low. Try turning up the TV volume to a high/higher level and it should solve your problem. Using the headphone jack with the white input allows you to use the headphones while bypassing the TV speakers.

Sennheiser RS... | Answered on Jan 30, 2020

Broken audio cable entering the transmitter or audio jack plug.

Power supply plug loose / faulty power supply.

Sennheiser RS... | Answered on Jan 21, 2018

Sounds like the turbo. Get a reconditioned turbo as they are very expensive new.

Sennheiser RS... | Answered on Jan 08, 2018

First thing is you need to have a signal going to the headphones for them to work.

If you are getting a signal the green light should be lit.

If only the red lamp is lit the headphones are not getting a signal.

If hooked into a television you should have them plugged into a Fixed Output not variable output..

If you only have a variable output then you must turn the speakers off on the television and then turn the volume up on the TV in order to send a signal to the headphones.

If you are using a amplifier make sure you are using the correct output. Tape Monitors generally will not work as this output is not amplified.

Lastly try using an rca to headphone adapter and plug them into a headphone jack.


Sennheiser RS... | Answered on Dec 14, 2016

see if the sound drivers are wll installed and if it happens with another headphones

Sennheiser RS... | Answered on Jul 18, 2015

Yes All batteries are subject to failure and eventually need to be replaced, some last longer than others it's a manufacturing consistency problem. ...

Sennheiser RS... | Answered on Feb 27, 2015

There's an auto-shutoff feature which kicks in when the audio input to the transmitter is too low. That's usually indicated by the green light on the transmitter turning off. Just increase the volume on the device connected to the transmitter, and you should see the green light come back on. As long as that's on, it'll stay transmitting and shouldn't just cut out to static.

Sennheiser RS... | Answered on Jan 19, 2015

Sorry I have not had that problem with batteries but have had other noises and I usually stop using the headphones for a while and hang them up and start again.

Sennheiser RS... | Answered on Jan 19, 2015

Sennheiser remote/cordless headphones are ordinarily very dependable. From your description it sounds like the problem is with the base unit. Try power-cycling the base with the headphones sitting on the charger cradle (red charging light must be on when you do this) - Unplug the power cord for about 10 or 15 seconds then plug it back in. This action should cause the base and the headset to go through the automatic pairing process. Once the base is paired with the headset, it should begin working again. Check also the channel pushbutton on one of the headphones. Hope this helps!!

Sennheiser RS... | Answered on Jan 19, 2015

Dirty volume control on headphones. Try moving the volume control back and forth several times to clean off the contacts.

Sennheiser RS... | Answered on Dec 14, 2014

The television audio out is the way to connect them. If you connect them to the cable box you may have audio lag.

Sennheiser RS... | Answered on Nov 01, 2014

Probably a defective item, Try for a return.

Sennheiser RS... | Answered on Oct 15, 2014

If it works with one, it would work with both unless you have it hooked up wrong or are not using the proper settings.

Sennheiser RS... | Answered on Jul 14, 2014

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