Sennheiser HD 4.50 BTNC are the Sennheiser’s entry-level noise cancellation headphones which features their NoiseGuard technology and supports the APTX audio tech. These were launched back at CES 2017 along with the HD 4.40s which are the exact same headphones but without the active noise cancellation feature.

But the Sennheiser HD 4.50 SE BTNC are not your regular pair of HD 4.50s these are the Sennheiser HD 4.50 BTNC SPECIAL EDITION. So what make these headphones so special. These headphones come in full black design, only availble during the Amazon sale period and they cost half the price of the regular 4.50s!

So here is my story behind getting these headphones. Before using this I was using the HD 4.40s which I had bought for 7490 rupees from Amazon India and a few days later I found this special edition 4.50 priced at 7490 so obviously, I was baffled. I crosschecked the price of HD 4.40 and it was 7490 rupees then I checked the price of the regular HD 4.50 it was 14990 rupees but the HD 4.50 special editions were available at 7490 rupees.

Confusing, very confusing. What are these special edition headphones and
why are they so cheap?

I had the exact same question and I decided to contact Sennheiser India. I asked them what’s the deal with this special edition thing and why they are only available on Amazon not even on your own official website. Luckily, they wrote back to me.

According to Sennheiser, these are indeed the genuine pair of HD 4.50s. They have partnered with Amazon to make these special edition headphones available only during a shorter period of time (that is during special sale periods) may be to reach more customers or something like that. The only differences are the paint job, as you can see these are all
black whereas the regular HD 4.50s come in black and grey combination and other big difference is the packaging. Unlike the regular pair of HD 4.50s, these come in the cheap amazon corrugated box although the box contents are extactly the same so you are not missing on anything.

Okey so that was the stoy behind the Special edition mark now lets discuss if they worth your money.


Wearing StyleAround Ear
Transducer PrincipleDynamic, Closed
ConnectivityBluetooth 4.0 / NFC Pairing
Frequency Response18 – 22,000 Hz
Impedance18 Ω
Sound Pressure Level (SPL)113 dB (Passive: 1 kHz /1 Vrms)
Total Harmonic Distortion (THD)<0.5% (1 kHz / 100 dB)
Battery LifeUp to 25 Hours
Weight (Headphones)8.4 oz. (238 g)
In the BoxHD 4.50BTNC Wireless Headset / 1.4 m Audio Cable / 3.5 mm Angled Plug / USB Charging Cable / Carry Case

Things I like about

  • I like the fact that they are foldable which makes them so easy to carry
  • They have NFC
  • They are APTX supported
  • They provide 20 hours of battery backup which is very true I charge them like once a week
  • There is an option to use them as a wired or wireless headphones so that is good
  • The auido quality is great for my usage
  • The narrow cushioned ear-cups are very comfertable for my small ears and they usually block most of the passive noise
  • For the price, the active noise cancellation is pretty on point they get the job done

Things I don’t like about

  • I hate the navigation buttons especially this single joystick thingy to control the playback and make calls? I just hate it
  • The narrow cushioned oval ear-cups are good for my ears but they might not be good for your ears most of the negative reviews are about the earcups being too small and too tight for most the people. So definitely check that before buying these
  • Using these for making voice calls wasn’t a very pleasant experience so I don’t recommend using these to make calls
  • They are not very bass heavy they generally provide balance sound which I personally prefer but if you are into base go for something like Skullcandy Crusher
  • You can use them as wired headphones but it requires a special 2.5mm to 3.5mm cable unlike the regular 3.5 – 3.5mm aux cable but they do provide this special cable in the box
  • These are the only reason I am still carrying a micro USB cable so I would have loved a USB Type-C charginport. I know i am being too nit picky but you should know this

Long story short, I love them these are my go-to headphones and I have no regrets at all buying them.

Stay tuned for the updates.

Product links:

Sennheiser HD 4.50 SE BTNC:

Sennheiser HD 4.50 BT NC:

Sennheiser HD 4.40-BT:

Skullcandy Crusher:

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When I am not daydreaming about Pirates and Time Lords, I like to write about tech and gaming.