Wireless Headphones Bluetooth

HD 4.50R

HD 4.50R or better said: a joy for both eyes and ears! This special edition of the acoustically closed HD 4.50BTNC headphones not only offers excellent Sennheiser technology with active noise cancellation and deep bass, but also innovative design highlights. Wireless – of course. So get going!
$ 179.95
plus applicable sales tax – free shipping
Article No. 508379

HD 4.50R: Exceptional everywhere

A unique enhancement. The closed-back HD 4.50BTNC headset now comes in a special edition: HD 4.50R. The sound remains exceptional, thanks to outstanding Sennheiser technology. The look, meanwhile, has changed somewhat: red, stylish details underscore the timeless design. And of course the NoiseGard™ active noise cancellation ensures that you still only hear one thing: music.

Perfection is this easy

The Sennheiser HD 4.50R with red design highlights is for everyone who wants good sound and looks. Nobody will want to remove this timeless eye-catcher and solid companion – no wonder with such comfort and lightweight materials. Just perfect for an active lifestyle.

Perfection is this easy

Does everything – except compromise

Music should be felt and not ‘just’ heard. NoiseGard™ active noise cancellation developed by Sennheiser provides such an experience. It cancels out annoying background noise, guaranteeing rich bass and optimal sound quality. Furthermore, reliable NFC permits quick and easy connection to all compatible devices. Incidentally, calls can also be taken at any time if necessary.

Does everything – except compromise

Music non-stop

The HD 4.50R not only features stylish looks with red highlights, but also provides up to 25 hours of listening pleasure on a single charge. Modern, lightweight design and optimal comfort are therefore a must. And if it does have to be taken off, the HD 4.50R can be easily folded together and stored in its case. Sounds good, huh?

Music non-stop

What's in the box?

  • HD 4.50R Headphones
  • Carry Case
  • Audio cable with 2.5 mm and 3.5 mm jack plug
  • USB charging cable with micro-USB connector
  • Quick guide
  • Safety guide

Technical Data

  • Frequency response
    18 - 22,000 Hz
  • Impedance
    18 Ω
  • Sound pressure level (SPL)
    113dB (Passive: 1kHz/1Vrms)
  • THD, total harmonic distortion
    <0.5% (1kHz/100dB)
  • Pick-up pattern
    Dual omnidirectional microphones
  • Frequency response (Microphone)
    100 - 10,000 Hz
  • Codecs
  • Battery Specification
    Li-ion Polymer Battery


  • Instruction Manual
  • Quick Guides
    • Quick Guide HD 4.50R (3.1 MB) Download

      Version 06/19

  • Safety Guides
    • Safety Guide HD 4.50R (7.5 MB) Download

      Version 06/19

  • EU Declaration of Conformity
    • EC Declaration of Conformity HD 4._series (560 KB) Download

  • Transport information for Lithium-Ion batteries
    • Transport information for Lithium-Ion batteries (470 KB) Download

      Revision Date: 2020-02-09 Revision Number: 1.0

WARNING (for California residents only): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects and other reproductive harm. For more information go to: www.p65warnings.ca.gov.