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.

Noise cancelling is good

Sound quality could be better

"On my second pair in less than 2 months what a joke, the muff has fallen off again. Not fit for purpose I mean cmmon my £20 headphones lasted a year and the sound quality for value for money avoid these theyre rubbish.

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.

I've had these for about two months. What I like about them; battery life is excellet, they can remember bluetooth pairings for up two eight devices which for me is really practical, phone, tablet lap top ans when I get one that has bluetooth TV .

It's hard to make a pair of Bluetooth headphones with quality noise cancellation for a reasonable price-we haven't found a winning pair yet. The Sennheiser HD 4.50 BTNC come close, but ultimately there are some quirks that stick out, like the noise cancellation's impact on audio and the slightly...

Strong bass response matched with crisp, bright highs; Bluetooth functionality and active noise cancellation; Detachable cable for wired listening

Noise cancellation affects audio performance; Can get uncomfortable over long listening sessions; Not for those seeking accurate sound signature

Good neutral sound. Like to collapse them. Not the most comfortable naps. Works well for a few hours, then it's nice to take them off. That works well for the daily commute. Battery life seems good. NFC to connect works well and is convenient.

The field of wireless, noise-canceling headphones used to be thin, but is swiftly filling up with surprisingly high-quality options. The undisputed leader is Bose, with the excellent QuietComfort 35. At nearly half the price, should Sennheiser's $199.95 HD 4.50 BTNC headphones make Bose nervous? The answer is complicated: The 4.50 BTNC do many things quite well, but also suffer from some performance quirks that might be deal breakers despite their relatively affordable price. Design Available in black, the headphones have a matte finish with silver-colored details. The plush circumaural (over-ear) earpads provide a hint of luxury, and they also function to passively eliminate a decent swath of ambient room noise before the active noise cancellation is even engaged. Despite only light padding on the headband's underside, the headphones are initially comfortable, though over long listening periods the headband can start to makes it presence known on the top of your scalp. Regardless...

The Sennheiser HD 4.50 BTNC headphones deliver a powerful Bluetooth audio experience and decent noise cancellation for the price, but some performance quirks hold them back.

Strong bass response matched with crisp, bright highs; Bluetooth functionality and active noise cancellation; Detachable cable for wired listening

Noise cancellation affects audio performance; Can get uncomfortable over long listening sessions; Not for those seeking accurate sound signature

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.

Who says great noise-cancelling's reserved for the elite? Now Sennheiser has dropped the gauntlet on the competition by launching the HD 4.50 BTNC Noise-cancelling headphones. It's much less expensive than the venerated Bose noise-cancellers that dominated Business Class cabins.