PRO: For the price point of $250, plus $30 for extra warranty, these are great value headphones; They have really good, clear and crisp audio with good depth; The noise-cancelling works great; Also, the 4-year warranty is incredible (i got an extra 2 years)

CON: Ease of use could be improved; Ease to connect for the first time on a device, I found difficult on some devices

Picked these up at the Black Friday sale for a good price. Really good pair of Bluetooth headphones at this price. Great sound quality. NC is pretty good too, although not as good as the Bose QC35 obviously.

Since today is the beginning of the last month in 2017, I think it makes sense to take a look back at everything that has happened this year. For me, there has been a lot of changes, both good and bad, but it has been positive overall.

Work great, use it on my commute in Mumbai and this almost blocks all noise. The battery life is good, one complaint is that the device goes off at about 20%, now I dont wait for it to drain till 20%. The sound quality is good.

The Sennheiser HD 4.50 BTNC offer a nice design, are reasonably comfortable, and sound great. Sure, there are better noise cancelling headphones out there - like the Bose QuietComfort 35 headphones.

Great sound, as one would expect from Sennheiser. Ample bass from the drivers. The earcups are comfortable but their oval shape gives a little bit of an on-ear feel than I would have liked. If I fit them perfectly over my ears then I get the over-ear feel and comfort.

Sennheiser recently added to their excellent noise cancelling headphones line-up with the HD 4.50 BTNC. The wireless headphone is their mid-range offering at $200 USD ($299 AUD £169.00). Sennheiser haven't cut any corners though, and it has many of the features of more expensive [...]

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

No hard case

There aren't too many headphones out there that offer both noise cancelling and built-in Bluetooth. Out of those select few, fewer again are actually worth your time and effort and attention.

Not everybody can afford a premium wireless noise-canceling headphone, which is where Sennheiser's more budget-conscious HD 4.50 BTNC Wireless comes in. At $200 (£170, $AU329), it's not cheap, but it's less than what you'll pay for certain models from Sony and Bose -- and Sennheiser, too.

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

Sennheiser promised to deliver on several new headphones and earphones and the most anticipated so far is the . The entire line of Sennheiser HD 4 Series headphones is a relatively new approach that focuses on a more robust sound in a comfortable and portable headphone.