2 years international warranty
30 days free return
FLEX 5000
FLEX 5000
FLEX 5000
FLEX 5000

FLEX 5000

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Article number: 506821

This sleek and elegant transmitter/receiver set brings Sennheiser audio expertise and leading edge digital wireless technology to those wishing to improve their TV viewing with a personalized listening experience. With three different hearing profiles to enhance TV, movies or music, to choose from. Plus a unique Speech Intelligibility feature that reduces TV background noise for added clarity.


Your + in TV listening.

Hear it all, enjoy it all. There is no great TV show that cannot be improved by great sound. Which is exactly why Sennheiser developed the Flex 5000. This innovative audio product allows you to tailor the volume, the sound profile and even the speech intelligibility to your needs while using any wired headphone – virtually turning it into a wireless listening system. So, you can move freely while enjoying your TV sound.

You are too experienced to take poor TV sound as a given: Intensify your listening. Add clarity and comfort to your TV sound, using your– or any other – wired headphone of your choice.

Your + in sound experience

Want a better program? Zap. Want better sound? Get a Sennheiser. – The Flex 5000 empowers your wired headphones to give you a dramatically enhanced TV sound experience. Just plug them in and you are able to customize your audio according to your requirements, with a choice of three different hearing profiles, which deliver clearest speech and colorful music. And, of course, you can adjust the left and right volume for a pleasant and balanced sound.

Your + in freedom

Unleashing you from the ties of cables, the Flex 5000 gives you the freedom to move within a range of up to 30 m and have extra-long TV sessions, thanks to batteries with up to 12 hours of playing time. With the included ultralight MX 475 earphones you can really enjoy this freedom to the full.

Your + in speech intelligibility

The Flex 5000 features a unique Speech Intelligibility function that makes speech easier to understand at the push of a button. It dynamically reduces background noise, which is part of the TV audio but may interfere with the spoken word. This makes for a much more relaxed listening experience.

Your + in comfort and simplicity

Focus on the program, not on your device: The Flex 5000 does not only offer easy and intuitive handling. It also provides full compatibility with digital as well as analog TV outputs.

Your + in style

The Flex 5000 is a sleek and attractive transmitter/receiver set that makes a stylish yet subtle addition to every home entertainment system. The transmitter also serves as a smart docking station for the receiver that charges the durable integrated batteries.


Color black
Impedance Headphones with min. 16 Ohm
Dimensions Receiver: approx. 29 mm x 87mm x 25 mm (W x H x D) Transmitter: approx. 50 mm x 42 mm x 270 mm
Country Variant (Power Supply) EU US UK Australia
Frequency response 15 hz to 15 kHz
Jack plug power supply:straight / Yellow TV Optical cable for digital audio out: straight /Pink 3,5mm audio: 1x straight and 1x angled / Blue
Cable length power supply 1.5m TV Optical cable for digital audio out 1.5m 3,5mm audio 1.5m
Weight Receiver: approx. 33g Transmitter: 232g
Charging time up to 3 hours Fast charging: 30 minutes charging for 2 hours operating
Range up to 30 m/100 ft
Power consumption operation: typ. 1 W standby: ≤0.5 W (without charging)
Signal-to-noise ratio analog input: typ. 85 dBA at 1 Vrms digital input: > 90 dBA
RF output power max. 10 dBm Class 1
Operating time up to 12 hours
Power supply Receiver: built-in Lithium-Polymer rechargeable battery BAP 800, 3.7 V, 350 mAh Transmitter: 5 V , 600 mA
Battery Specification Integrated battery BAP 800, 3.7 V, 350 mAh
Frequency 2,4 - 2,48 GHz
Rated Output 5 V
Connection digital input: optical supported data streams: PCM, 16 - 96 kHz/16 - 24 bit analog input: 3.5 mm jack socket Input voltage range: 0,15 … 4,0 Vpk
Latency <60msec
Display Battery Status LED
Temperature Range Operation: 0 ° C to +40 ° C
Maximum number of connected receivers 4

What's in the Box

  • Clip-on receiver with built-in Li-Pol rechargeable battery
  • Docking station
  • MX 475 Earphones
  • Power supply unit with country adapters for EU, UK, US and AUS
  • TV Connection cable for 3,5mm headphone audio out
  • TV Optical cable for digital audio out
  • Instruction manual

Customer Reviews

Based on 3 reviews
Philippe Rey
Philippe Genève

Nous sommes sur certains points déçus du FLEX 5000. Les embouts des oreillettes s'adaptent mal aux oreilles et tombent souvent. Il faudrait disposer d'embouts de plusieurs dimensions. Si on doit se déplacer, il faut emporter le matériel avec soi. C'était aisé avec les modèles SET 840 et RS 4200. La qualité du son est moins agréable qu'avec les anciens appareils. Avec la plupart des habits il est difficile de fixer la pince très rigide du récepteur.
Bonnes salutations.


Works great with out tv whereas bluetooth, not so much.

tore svendsen

FLEX 5000