Sennheiser RS 135-9 RF Wireless Headphone System, On Ear, Open-back

Wireless Open-back Headphones with Transmitter/Charging Stand
Sennheiser RS 135-9 RF Wireless Headphone System, On Ear, Open-back image 1
Sennheiser RS 135-9 RF Wireless Headphone System, On Ear, Open-back image 1

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Sennheiser RS 135-9 RF Wireless Headphone System, On Ear, Open-back
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Up to 330' of Wireless Performance

Sennheiser's outstanding RS 135-9 wireless headphones give you the convenience of being able to walk away from your sound system and still be able to get ultra-clear headphone performance. These lightweight, comfortable headphones sound just as great as their wired counterparts, and you can use them with all the same gear and A/V components you plug your wired headphones into. But, unlike wired units, these headphones give you up to 330' of roaming range. And a feature that sets them apart from other headphones at Sweetwater is how the RS 135-9's transmitter doubles as a handy charging station, so you can keep these headphones charged and on hand at all times.

Sennheiser RS 135-9 Wireless Headphones Features at a Glance:
  • Quality wireless headphones system
  • Wireless technology with reception up to 330'
  • Headphone charging stand
  • Open-air design for high-fidelity audio reproduction
  • Volume, on/off, and tuning controls located on the headphones
  • Lightweight and comfortable for extended listening periods
  • Replaceable earpads for long service life
  • Frequency response: 22Hz-19,500kHz
  • Transmitter can be wall mounted
Use Sennheiser's RS 135-9 wireless headphones and enjoy unrestricted, cable-free listening.

Additional Media

Studio Monitor Buying Guide

Tech Specs

Open/Closed Open
Fit Style Supra-aural (On Ear)
Frequency Response 22Hz-19.5kHz
Impedance 24 ohms
Plug Size Dual RCA cable (HDR 135-9), (1/8" adapter, 1/4" adapter Included)
Wireless RF Wireless with RS 135-9 transmitter
Power Rechargeable
Color Black
Weight 7 oz
Manufacturer Part Number RS 135-9

Customer Reviews

Based on 12 reviews
Write your review


First of all thanks Caleb great service. And yes these work great on my bass amp. You have to tune them in but after that they are great. My wife likes the quiet.


I had trouble enjoying my theater system with my flat screen with the people living upper from me. No matter how low I had the volume on the system they would complain. It's OK for those people to rev their Harleys at all matter of times during the morning and evening hours, but not OK for me to enjoy a movie on my system. So, after being threatened ... I decided to calm the savage beast by adding this set of head phone upon my Sweetwater sale persons advice. Actually, I prefer to listen to a movie or a tv show with them on and may even get rid of my theater system. Better quality sound and all the nuances of a program can be heard much sharper and vivid than with speakers. I had bought and extra set of headphones so anyone can enjoy as well. I am even thinking of purchasing another set for my music recording system. They are very comfortable and the sound is comparable to any other wired headphones I have. I give the Sennheiser RS 135-9 System two thumbs up. Very satisfied.
Music background: Professional Drummer / musician

My Hearing Loss

I have hearing loss, enough so that watching TV with my wife comes close to WWIII. I have it so loud that she can't stand it ... and ... even with the added volume, I can't really understand it any better. With the help of the people of Sweewater, I ordered a Sennheizer RS 135-9 RF Wireless Headphone set. Life has been very peaceful around here since I received them. My wife listens to the TV at a level she wants to Iisten and I listen at a level that I want..... plus, now I can also understand them. I had a set of Sony that lived a long life but bit the dust. These are a fine replacement for the Sony's. The only issue I have with them is the "tuning" wheel is very close to the "volume" wheel and I am constantly bumping the tuning wheel and have to readjust it.... no major catastrophe there though. I LIKE THEM!!!!

An excellent product

Five stars. (I assume that "WOW! Blown away" means what "excellent" means to us geezers.) We were so pleased with the first set that we bought a second. The "open" headset allows the wearer to hear sounds nearby, but not so loudly as to interfere with the music. Sound quality is as good as or better than that of earbuds, which block surrounding sounds. Range is impressive; the transmitter reaches all parts of our house without loss of signal. All headsets either squeeze the head and ears too tightly or are loose and liable to slip off the head. There seems to be no middle ground. These, being comfortable on the head, are loose enough to slip off if I suddenly look straight down. You may not have that problem. I tied a string loosely between the earpieces; it droops around the back of my head and prevents the headset from slipping forward.

Wireless headphones

Excellent service and product
See also: Head Phones, Sennheiser, Sennheiser Headphones