Your cart
Contact us
Close contact box
Connect ID #
847 281 589 3
Connect ID #
847 281 589 3
All finished with your chat session?

We’ll email you a transcript of this conversation for your records.

All of our representatives are
currently chatting with other customers.

Please enter your name.  
Please enter a valid email address. Why is this required?

For Tech Support, call 1-888-292-2575

Thank you, !
Our conversation will be emailed to
Chat Advisor Image

Your Advisor,

More about me
Please enter a question  
Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  

Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Sennheiser RR Flex

Extra wireless receiver for Sennheiser Flex 5000 wireless TV system

Item # 143RRFLEX

California customers:
Please click here for your Proposition 65 warning.

Item # 143RRFLEX

Ships free today

In stock

Free lifetime tech support

Whenever you need a hand.

Need an expert?

Our Advisors know their stuff and love to help.

Since 1974

Years of experience making people happy.

About the Sennheiser RR Flex

The more, the merrier

Add this extra wireless receiver (or two or three) to your Sennheiser Flex 5000 TV listening system so housemates or family members can get in on the late-night TV binge-fests, too. The RR Flex receiver has a 3.5mm stereo output for connecting your favorite pair of earbuds or headphones. Each has its own volume controls, a "Speech Intelligibility" button to boost dialogue, and a battery life of up to 12 hours.

Product highlights:

  • add-on headset for use only with the Sennheiser Flex 5000 wireless TV listening system
    • up to four headsets can be used with a single transmitter
  • RF wireless transmitter range: up to 100 feet
  • wireless receiver includes a headphone minijack for connecting your choice of headphones
  • large volume buttons and "Speech Intelligibility" button for boosting dialogue
  • built-in rechargeable battery provides up to 12 hours of operation
  • docks on the Flex 5000's transmitter to charge (one wireless receiver can dock at a time)
  • radio frequency: 2.4-2.48 GHz
  • weight: 1.16 ounces
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # 506823

What's in the box:

  • RR Flex Wireless clip-on receiver
  • Magnetic battery charger with attached 36" cord
  • AC adapter with attached 58" DC output cord (DC output: 5V 1A)
  • 4 AC plug adapters (No Amer / Euro / UK / Australia)
  • Quick Guide
  • Compliance Information
  • Safety Guide

Customer reviews

Loading reviews...

Sennheiser RR Flex reviews

Average review:

4 reviews

Thanks for submitting your review

Filter by rating

Customer photos

Sort reviews

Sort by:
Items per page:
View page:

Verified customer (What's this?)
Verified employee purchase (What's this?)



Crutchfield response

<< >>

More details on the Sennheiser RR Flex

Mark G.

Product Research


Overview: The Sennheiser RR Flex clip-on wireless receiver an accessory to the Flex 5000 Digital Wireless TV Headphone System. It operates in the 2.4 GHz RF band, and cannot be used without the TR 5000 Transmitter. The Flex 5000 system can enhance your TV watching experience by providing clear, intelligible audio of your favorite programs. The RR Flex receiver has a 3.5mm output that lets you connect your favorite pair of headphones (minimum 16Ω). Up to 4 receivers can be used simultaneously with a TR 5000 transmitter.

RR Flex: The RR Flex clip-on wireless receiver has a 3.5mm audio output for connecting your own favorite headphones for listening to your audio source. The connected headphones must have a minimum impedance of 16Ω. With a range of up to 100 feet, the receiver allows you to move around freely while you watch TV. It has a built-in Lithium-Polymer rechargeable battery (3.7V, 350mAh) with a typical operating time of up to 12 hours. The RR Flex features an on-board volume control and Speech Intelligibility button.


  • Connection: 3.5mm stereo jack for headphones (min. 16Ω) or induction loop for hearing aids
  • Output Voltage: 900mV at 32Ω
  • Frequency Response: 15 Hz to 16 kHz
  • Battery: Operating Time: up to 12 hours; Charging Time: up to 3 hours (Fast Charge: 30 minutes for 2 hours operating)
  • Dimensions: Width 1.153" Height 3.424" Depth 0.955"
  • Weight: 1.2 ounces

Loading accessories...

Customer Q&A

3 questions already asked

Will it work with the prior Sennheiser Set 860?
[ JOSE C  Apr 13, 2020 ]
1 answer
Hi Jose, thank you for your question. Unfortunately, the Sennheiser RR Flex, is only compatible with the Flex 5000, and cannot be used without the TR 5000 transmitter, that is part of the Flex 5000 system.
[ Jess  Apr 28, 2020 ]  Staff
Will the Sennheiser RR Flex wireless receiver work with my Sennheiser Set860?
[ JOSE C  Apr 06, 2020 ]
1 answer
I've looked over all the details we have on it and even on Sennheiser's site. I cannot find any mention of this wireless receiver being able to work with the SET860 system
[ Paul  Apr 26, 2020 ]  Staff
Will RR Flex Receiver work with RS 5000 Transmitter ?
[ Andrew  Jan 10, 2020 ]
1 answer
Yes! It should work just fine!
[ Calvin  Jan 21, 2020 ]  Staff

Loading articles...

Compare the sound