Sennheiser HD 4.50 BTNC Wireless Bluetooth Headphones with NoiseGard Active Noise Cancellation

Model #506783

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General Information

Ear Coupling Closed, circumaural
Frequency Response 18 Hz to 22 kHz Microphone: 100 Hz to 10 kHz
Impedance 18 Ohms
Transducer Principle Dynamic
Sound Pressure Level 113 dB (Passive: 1 kHz/ 1 V RMS)
Total Harmonic Distortion (THD) <0.5% (1 kHz/100 dB)
Pick-up Pattern Dual omnidirectional microphones
Ambient Noise Compensation NoiseGard active noise cancellation
Codec aptX
Input Power 3.7 VDC, 600 mAh: Built-in rechargeable lithium-polymer battery 5 VDC, 400 mA: USB charging
Operating Time 19 hours (Bluetooth and NoiseGard on) 25 hours (Bluetooth only)
Charging Time Approximately 2 hours
Battery Lithium polymer
Connectivity Bluetooth 4.0/NFC pairing
Connector Cable 4.6' (1.4 m) gold-plated audio cable with 1/8" (3.5 mm) angled plug
USB Charging port
Dimensions Not specified by manufacturer
Weight 8.4 oz (238 g)
Expert Reviews
12 July 2017

Sennheiser's HD 4.50 BTNC Wireless gets you most of what you want in a premium wireless noise-canceling headphone but costs significantly less.

  • +

    The Sennheiser HD 4.50 BTNC Wireless is wireless noise-canceling headphone with effective noise canceling that sounds great and costs significantly less than Bose's QuietComfort 35. It works well as a headset and offers decent battery life. The headphones fold up into a simple canvas carrying bag.

  • -

    Not quite as comfortable as higher-end models from Bose, Sony and Sennheiser.

Sound review.34815418
30 July 2017

Sennheiser HD 4.50 BTNC is a high quality noise cancelling headphone that stands up well against anything in its price point.

  • +

    Bass-focused sound that retains balance High quality for the price range Comfortable Easy to use

  • -

    No hard case

Major hifi.34842338
3 July 2017

To sum it up the Sennheiser HD 4.50 BTNC Wireless Headphone is excellent. It’s perfect for everyday use and has superior sound over any other similarly priced Bluetooth noise-cancelling headphone on the market. It’s simple to use, sounds great and is built to last a long time.

What hi fi.32817832
19 July 2017

Sennheiser’s HD 4.50 BTNCs aren’t awful, but they're not all that great. In this market, they don't stand out

  • +

    Decent noise-cancelling, Smooth overall presentation, Good body to the midrange

  • -

    Balance skewed toward bottom end, Timing and dynamics leave much to be desired, Not the most detail, Uncomfortable over time

User Reviews
6 July 2017

Not happy with the noise cancelling for several reasons:Hard to turn off and on, this takes both hands, one to hold the headphones and one to push both ends of the volume control.

  • +

    Great build quality.When turned off and wearing them, they provide decent noise reduction, most likely due to the closed cup design.Sound quality is good, I am not an audiophile.Fit is comfortable, I have big ears and they fit over them just fine. Other reviewers have commented on the fit.

  • -

    Noise cancelling, see the review comments.The captune app does not provide any additional functions, (android).Instructions are terrible, just pictures, you need to download them off the website.

B h photo.32817553
16 June 2017

I was looking for a quality active noise canceling headphones as I am attending online lectures, watching video lectures. I am also an audiophile and want great sound quality headphones.

Micro center.34865720
11 July 2017

Overall great headphone. Decent active noise-cancelling, the bass good and noticeable, mid decent it could be better, low is there but got lose with the high bass.

1 week ago

These headphones sound great, are comfortable to wear, easy to use and have good noise cancelling.

  • +

    Comfortable to wearSound greatEasy to useGood noise cancelling

  • -

    None as of now

2 weeks ago

So i had been waiting for these headphones for a while as I bought these as a birthday gift... It won't be wrong to say these were worth the wait. Sound quality is dope well it's senhieser.. Noise cancelling is too good for the price once you start playing a song..

2 weeks ago

I don't understand if the noise cancellation is turned on or off. I dont think the word Noise Cancellation suits the technology used in this headphones. Especially if you have heard Bose, whatever be the cost difference, this is not at all near the ANC feel. Terrible.

2 weeks ago

Purchased this headphones a few days ago from Croma and I must say, totally disappointed The noise cancellation as I can hear it, cancels only the noise of the fan, so it's just decent but that's not much of an issue The most disappointing part is the bass..

2 weeks ago

With the HD 4.50BTNC, you can expect a warm clear sound with crisp highs and punchy bass that's adequate but never overpowers. For those who are after crisp audio and well-rounded tone, the HD 4.50BTNC is worth considering.

2 weeks ago

Same product is available in 11989 rupees by other sellers I purchased it for 15000 rupees from fastdeals india, feeling like I have been cheated by seller fastdealsindia, sound - superb quality but product's bass needs to be improved, noise cancellation is fair , overall product good would rate 4...

2 weeks ago

Yes the product is as per what it claimed.. Nice sound , notice cancellations and good fitting to ear. Only drawback is can't prevent sounds from traffic ..otherwise superb

Product Highlights
  • Bluetooth 4.0 and NFC Pairing
  • Intuitive Earcup-Mounted Controls
  • NoiseGard Active Noise Cancellation
  • Dual Omnidirectional Microphones
  • Foldable Design for Travel and Storage
  • Built-In Rechargeable Battery
Average Expert Score
Average User Score
In The Box
  • Sennheiser HD 4.50 BTNC Wireless Bluetooth Headphones with NoiseGard Active Noise Cancellation
  • Carry Case
  • Audio Cable with 2.5mm and 3.5mm Jack Plug
  • USB Charging Cable with Micro-USB Connector
  • Limited 2-Year Warranty
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