Question about Sennheiser RS 120 Consumer Headphones

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My sennheiser 120 headphones are wearing out. After much use.

Can I purchase a pair of new headphones to use with the existing base stations which are functioning well

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You can buy the HDR 120 model which is basically the headphones lone
These will work with the base in conjunction with the set you have now.. or as a replacement
You can also buy replaceable ear cups for less than 20 dollars (check the Sennheiser website)
Finally you may want to replace the rechargeable batteries in the headphones you have
Just make sure you replace them with the exact type.. I believe those are NiMh AAA
Pop them out and go to any Battery Plus or Radio Shack.. a new set probably run you less than 7 bucks
My point.. for less than 30 dollars you can have your old headphones working and looking like new ones
Give the new batteries an overnight charge before using them

Good luck

Posted on Apr 30, 2009

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Try J&R MUSIC WORLD OR THERE OTHER BRANCH ( SAME COMPANY DIFFERENT WAREHOUSE) J&R COMPUTER WORLD they have a lot of exclusive electronics super techno stuff like that try and get a catolog they show more items than the site! i hope that helps you any! over and out!

Posted on Jan 03, 2009


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Posted on Jan 02, 2017

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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!!

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If you step back and look at this problem, there are two to three things that immediately come to mind: 1) have you hooked your headphone input to an output of another device like an amplifier or tv or ...? 2) Are you certain that the headphones are charged and the power to the base station is good 3) pairing the headphones to the base may be an issue.
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Probably a defective item, Try for a return.

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The system is working in the 860 Mhz range, so not that common. Most of the time it is cheaper to by a complete new system then to tray to buy components. Just keep looking in the thrift stores you find a transmitter for this headphone for a good price.

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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

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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.

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Mine is a bit older (2yrs), but I have exactly the same problem. Absolutely no sound from the headphones (no beeps). I also tried new batteries, but still nothing.

If you have a solution, let me know!


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Dance_to_it -
I have had these great headphones over 15 years (I think!)
1. Are the batteries getting a full 8 hour charge?
2. Have you tried all 3 channel options?
3. Is there anything else close by that is an RF transmitter or receiver? If so, move the headphone base or other RF instrument away from each other.
4. If these are the original batteries you probably need new ones.
5. When purchasing new batteries I recommend original equipment Sennheiser BA151 batteries, not any other brand. I have tried 3 or 4 other brands, all with less than satisfying results. I have no affiliation with Sennheiser corp., just a consumer of their products (and Grado's for wired headphones)
Good luck!

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