Top 20 Sennheiser RS 120 Consumer Headphones Questions & Answers

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

Broken audio cable entering the transmitter or audio jack plug. Power supply plug loose / faulty power supply.

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 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!!

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

Probably a defective item, Try for a return.

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

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

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.

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.

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

Adjust the tuning wheel on the side of the headphones so it picks it up.

Sounds like you are using the wrong adapter. You should check.

This headset uses a 900 MHz frequency for connection from the headset to the base. You will always incur lots of interference in a busy office using that frequency band. Any antennas on the roof or close by? Amateur radio users? The other thing, you might have a faulty power supply or "dirty power" coming into the unit. You can try and isolate in a current regulating power bar and see if that helps. Else, consider changing technologies and moving to, say a DECT band. Avoid, 2.4 and 5 GHz bands as they are in the wireless devices range and likely will incur equal amounts of interference.

Your TV should have Audio out somewhere, even if its digital audio out, you could output to a receiver and then hook your headphones to the receiver.

sounds like you are plugged into a speaker jack-not the headphone jack-cheers Denny

is there a frequency channel selector on the headphone base, and on the headphones? the two pairs must be on different frequencies, or they will pick up the same show as the other

My Sennheiser comes with a black and red cable. I plugged the red into the red in the back of the tv and the black into the white in the back of the tv and it works for me. Hope this helps.

Yes

You should have either a digital audio out port in the back of your tv or color coded analog out ports. Are you sure you have the cables plugged into the appropriate ports? I made the same mistake when hooking mine up, sometimes the print identifying the ports is very small. Also, since the headphones are wireless you may be receiving some kind of interference from somewhere. If you live in an apartment complex or next to a power substation that could be an issue.