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Sennheiser RS 135-9

Wireless on-ear headphones with transmitter

48 Reviews | 3 questions - 12 answers

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Item # 143RS1359

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Our take on the Sennheiser RS 135-9

As the parent of a three-year-old, I have to pick and choose when I watch my favorite special effects-filled TV shows. It's not like I can turn on Game of Thrones in the middle of playtime. The Sennheiser RS 135-9 wireless headphone systems lets you watch TV with exciting, detailed sound, even when others are asleep. (The wireless transmitter connects to your TV's headphone jack or analog audio output.)

Watch TV or listen to music on your own time

Sennheiser RS 135-9 wireless headphones

Plug the transmitter into a 3.5mm minijack audio output on your TV or a headphone output on your stereo system.

As the parent of a three-year-old, I have to pick and choose when I watch my favorite special effects-filled TV shows. It's not like I can turn on Game of Thrones in the middle of playtime. The Sennheiser RS 135-9 wireless headphone systems lets you watch TV with exciting, detailed sound, even when others are asleep. (The wireless transmitter connects to your TV's headphone jack or analog audio output.)

The on-ear headset has an open-back design for spacious sound from movies, shows, and music. Some sound does escape. But they're certainly more sleep-friendly than blasting the volume on your TV or stereo system

Huge wireless range and rechargeable headset batteries

You plug in the included transmitter the same way you would connect a set of wired ‘phones. It connects to your TV's stereo RCA or 3.5mm minijack audio output, and you also get a 1/4" adapter to accommodate a full-size headphone jack on a stereo system. The radio frequency (RF) transmitter has a maximum range of 330 feet and can send its signal through walls and ceilings. The headphones are powered by included "AAA" rechargeable batteries. With the batteries inserted, just hang the headphones atop the transmitter and charging will automatically begin. You'll get up to 20 hours of use with a full charge.

Soft padding and earcup dials for easy control

When you're binge-watching TV or listening to music for long stretches, comfort is key. The RS 135-9's lightweight headset features soft cloth earcups that rest on your ears. Extra padding lines the top of the headband. The volume control is built for leisure, too — it's located on the right earcup, along with a tuning dial to keep the wireless signal strong, so you don't have to get up to make adjustments.

Product Highlights:

  • on-ear, open-back design
  • included wireless transmitter delivers high-quality audio to the headphones
  • transmitter features an attached cable to connect to the stereo RCA output on your TV or audio system
    • 3.5 mm stereo minijack adapter included
    • 1/4" adapter also included
  • 900 MHz RF (radio frequency) wireless transmission
  • wireless range: up to 328 feet
  • transmitter also serves as a docking station to recharge the headphones
  • battery life: up to 20 hours with a full charge using the included batteries
  • volume and tune dial on headphones
  • includes 2 "AAA" NiMH rechargeable batteries for the headphones
  • frequency response: 22-19,500 Hz
  • headset weight: 7 oz. (with batteries)
  • warranty: 2 years
  • Our 60-day money-back guarantee

What's in the Box:

  • HDR 135 Over-ear wireless headphone
  • TR 135 Transmitter with attached 82" audio cable (stereo RCA plugs)
  • Stereo RCA-to-3.5mm plug adapter
  • 3.5mm-to-1/4" plug adapter
  • 2 "AAA" NiMH rechargeable batteries (1.2V 600mAh each)
  • AC adapter (NT9-3A) with attached 5' DC output cord (DC output: 9V 0.34A)
  • Instruction Manual
  • Safety Guide
  • Info card on connecting to TV
  • Diagram for connecting AC adapter

Absolutely a great product. The service for ordering and delivery was excellent. As usual Crutchfield did a great job.

Roland, New Milford, CT


Sennheiser RS 135-9 Reviews

Average Customer Review(s):

(48 Reviews)
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Hands-on research

Product Research


Overview: The Sennheiser RS 135 RF Wireless headphone system consists of a pair of wireless headphones (HDR 135) and a radio frequency (RF) transmitter (TR 135). The system is designed to enhance the sound of your TV or home audio source, and to give you the freedom to walk around your home with the headphones on.

Wireless Headphones: The HDR 135's wireless headphones feature an open, supra-aural (on-ear) design. The soft-padded ear cups and headband provide hours of listening comfort. The headphones have the power control left ear cup, and volume and tuning controls on the right ear cup. Two charging contacts are located on the inside of the headband. With the batteries installed, the HDR 135 headphones weigh 7.9 ounces.

TR 135 Transmitter: The transmitter connects to your television's or audio system's audio output via the attached RCA cable (82" length). The audio is transmitted on the 900 MHz band (926.15 to 927.55 MHz) with FM stereo modulation. The extended transmission range is approximately 328 feet (100 meters) with reception through walls and ceilings. The transmitter is powered by a 9-volt DC power supply/AC adapter. The transmitter features a convenient charging stand for the headphones that extends above the top of the transmitter. Two keyhole slots are provided on the back to allow you to wall-mount the transmitter, if desired.

Audio Connections: The transmitter has an attached audio cable with stereo RCA plugs. Two adapters are included: a female stereo RCA-to-male 3.5mm (1/8") plug, and a female 3.5mm-to-1/4" (6.3mm) plug.

Rechargeable Batteries: The headphones are powered by two (included) "AAA" rechargeable NiMH batteries (1.2V, 600mAh). The batteries fully charge in approximately 18 hours when placed on the charging stand. Typical battery life is approximately 22 hours of use. Standard, non-rechargeable "AAA" batteries should not be used in the headphones.

Additional Headsets: The optional Sennheiser HDR 120 wireless headphones, sold separately, can be used as a second set of headphones for the RS 135-9 system. They operate on the same frequency band with FM stereo modulation. Multiple pairs of headphones can be used simultaneously with the RS 135-9 wireless system.


  • Frequency Response: 22Hz - 19,500Hz
  • Maximum Sound Pressure Level: 106dB at 1kHz, 1 Vrms
  • Total Harmonic Distortion: <0.7% at 1 kHz, 100dB SPL
  • Transmission Range: Up to 330 feet (100 meters)
  • Dimensions:
    • Headphones (Earcups): Width 3.163", Height 4.013", Depth 1.721"
    • Transmitter: Width 3.32", Height 5.25" (8.875" including charging stand), Depth 5.24"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Friend has this model and it works great. [ Richard  Oct 18, 2018 ]
I wanted a wireless headphone with volume controls for my Samsung TV. Eddie assured me that I could hook this up with accessories provided. I'm sure He;s right. [ Gary  Oct 17, 2018 ]
My dad (93 years old) uses them to watch TV. He sat on his other pair and keeps asking for his headphones. [ Lynn  Aug 27, 2018 ]
Rechargeable battery, good reputation for quality, reasonable price. [ Bruce  Jun 25, 2018 ]
My dad is in a nursing home, and hard of hearing. They were recommended by my uncle. [ Kenneth  Apr 26, 2018 ]
Best option to control HDTV sound so we do NOT annoy the rest of the family [ S  Jan 23, 2018 ]
Pretty good references 4 & 5 star [ Gary  Dec 27, 2017 ]
Seemed to have the most features for the price, and the quality brand name. [ William  Dec 18, 2017 ]
Family member who is hearing impaired -hope this is a solution for TV viewing. [ eric  Dec 06, 2017 ]
had set previously [ charles  Nov 22, 2017 ]
I read the article in your most recent catalog and have high hopes for the performance of these headphones. [ James  Sep 26, 2017 ]
I bought this because the first one worked so well. [ Michael  Jun 20, 2017 ]
good price very good reveiws [ laura  Jun 06, 2017 ]
Price and product quality. [ JAMES  May 13, 2017 ]
Friend has one. [ James  May 01, 2017 ]
Price in scratch and dent outlet seemed good. [ SIDNEY T  Apr 27, 2017 ]
Recommendation from Brooke [ MICHAEL  Apr 23, 2017 ]
Recommended by advisor, Sam [ George  Mar 13, 2017 ]
Sam's expert knowledge. [ Cecil  Feb 03, 2017 ]
If it works, looks like good value. [ Ronald J.  Feb 02, 2017 ]
My wife needed a device so she could increase the TV volume more than I needed. It works very well. I have had good experience with a regular Sennheiser headphone. [ Alfred  Jan 31, 2017 ]
I got a pair of these for my mother for Christmas so she could watch TV at night without disturbing her husband. I got them set up and tested out for her and liked them so much, I have to have a pair for myself! [ Ron  Jan 01, 2017 ]
My mom is hard of hearing and I'm hoping these headphones would make her TV viewing more enjoyable. [ ALFREDO  Dec 29, 2016 ]
I bought a LG tv last year from Crutchfield very good service. That why I bought the headphone today they will stand behind all of there products [ SHELTON  Dec 27, 2016 ]
Good price and no taxes [ Ruth  Dec 16, 2016 ]
I picked these for the price. Not to mention so I can watch TV and not disturb others in the house. [ John  Dec 10, 2016 ]
Good reviews and good website with video [ Shirley  Dec 09, 2016 ]
Mobility. If there is a way to get better fit of the ear muffs (they fall off sometimes when I bend to do housework), this tool would be perfect! [ JOANETTE  Nov 28, 2016 ]
Used for smaller TV in separate room from main TV that has a Yamaha receiver that can output audio to Bose Bluetooth earphones. Now in smaller room TV that does not have earphone jack can use a wireless earphone set with similar results when needed and no need for a separate receiver with earphone jack which would be overkill for my needs. [ Don  Nov 25, 2016 ]
We thought that these headphones would work and David was a big help during the chat I had with him. David's Bio: [ Loretta  Aug 21, 2016 ]
Recommended for my particular needs by a Crutchfield staff person. [ Edwin  Jul 12, 2016 ]
I need to be able to watch TV at a volume where I can hear the dialogue clearly when my wife is still sleeping and I can't turn up the volume. [ D  Jun 20, 2016 ]
right price, right features [ Robert  Jun 10, 2016 ]
Have Sony and wanted to get a little better quality in a second set. Was in the market and happened to be on sale in the latest catalog I got. [ James  Jun 03, 2016 ]
Had a prior Sennheiser Listening before this order. Received excellent fidelity. Need hearing assistance these days more than ever [ Maurice R.  May 24, 2016 ]
So I don't bother others while watching tv [ RICHARD M  May 22, 2016 ]
My grandfather needed some wireless headphones that were not Bluetooth and these also recharge on the receiver so I thought these would be convenient. [ Kenneth  May 21, 2016 ]
i have been looking for wireless headphones for you tv and sterio at reasonable price and here we are THANKS [ james  May 20, 2016 ]
I have been looking at these types of headphones it seems like for about 25 years, ha. Well because it's Crutchfield and price was right, I'll be able to hear... I'll keep you in mind for all electronics... Thanks [ Stephen  May 18, 2016 ]
Looking for a light weight wireless headphone to plug into my wall mounted TV. Positive recommendations and reviews helped. LOVE Crutchfield! [ Eric  May 15, 2016 ]
Because I am dealing with Crutchfield and Sennheiser, both Nr !. [ Lewis E.  May 01, 2016 ]
Need a headphone [ Bernd  Apr 29, 2016 ]
The wireless head set or one like it was seen in another house and looked like a well put together product. We seen it at another web site, but they were out of the product, so we seen your web site with the RS 135-9 and you had it on hand, so we bought it from you. Thank you! [ Bradley A.  Mar 29, 2016 ]
recommended by rusty Rusty's Bio: [ kirk  Mar 18, 2016 ]
Good experience previously with Sennheiser products. [ Lawrence Scott  Mar 08, 2016 ]

3 questions already asked

Wouldn't know. But they are an excellent head phone. My husband is very hard of hearing and he is able to hear everything that is said on tv. And best of all I can keep the sound at a comfortable level for me. Highly recommend them. [ Shirley  Nov 05, 2018 ]
I don't know. They work great with TVs. My husband listens to his favorite tv channels while I enjoy quiet! [ SUSAN  Nov 05, 2018 ]
If the piano has left and right RCA audio jacks then it will work right out of the box. If you only have a 3.5mm headphone jack then you will need an adapter. Either way they should work great for you. [ William  Nov 05, 2018 ]
That would depend if your electric piano has a receiving port for the signal??? [ Kathy  Nov 04, 2018 ]
I don't think so, I have mine connected to a Home Theatre set, and have to turn down the sound from the Amplifier/Receiver to use my head phones. Also, the head band on mine does not "fit" tight enough; and if you move your head a little too quick, they fall off! [ Dennis  Oct 30, 2017 ]
Yes, volume directly from the television is independent of the headphones. The headphone wearer can adjust to suit his or her preferences, and the other people in the room can adjust the volume of the television -- one does not affect the other. [ J Christopher  Oct 30, 2017 ]
I purchased these as a gift. They plug into the aux. Not sure if that would shut off the sound on all TVs. If you had more headsets/reievers they should function. An aux adapter would allow a wired. Headset to be connected. Hope that answers your quuestion. [ Kenneth  Oct 30, 2017 ]
YES IT SURE IS. [ CLAY  Oct 29, 2017 ]
Absolutely. Most modern TVs have audio outputs (RCA type) that do not cut out the TV's speakers. The headphones have their own volume control. [ Dr. James  Oct 29, 2017 ]
Yes just control the TV volume as normal. [ CHARLES R  Oct 29, 2017 ]
Yes other viewers can still hear the t.v. while you use your headphones or you can mute the t.v. and just hear it through the headphones [ MIKE  Oct 29, 2017 ]
Over-the-ear phones completely cover your ears so as to seal out external noise and also to prevent sound leakage from inside. On the other hand, on-the-ear phones are smaller and rest on your ears. [ Rosmadi  Jan 06, 2017 ]  Works for Sennheiser

Looking for more? Check out the next model in this lineup.

Sennheiser RS 165 wireless headphones

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The Sennheiser RS 165 offers these features:

over-the-ear, closed-back design helps keep out external noise

bass boost button on headphones

frequency response: 18-21,000 Hz

transmits wirelessly on the 2.4GHz frequency band

weight is heavier 10.6 oz.

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