Returned these the next day. Noise cancelling and volume extremely poor. Could hear the microwave as well as conversations even on the highest volume. Along with this, the volume was not loud at all, in an empty, quiet house these still made me feel like I was wearing the apple earphones that came...

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.

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.

Sennheiser HD 4.50BTNC are large on-ear wireless headphones with Bluetooth as well as NFC connectivity

This is my first pair of over the ear headphones so my thoughts after a week. Battery life - Excellent Sound quality - Good I listen to a range of genres for Hip Hop and R&B songs with a lot of deep base these are excellent the only down side is that they aren't very load.

I read many reviews about many headphones before I settled on purchasing these for my Husband's Birthday present. He is extremely pleased with them and finds wearing them comfortable and the sound very clear. I have never purchased headphones before. They have lived up to our expectations.

I have been using these headphones for a couple of weeks now. As you would expect from Sennheiser the sound quality is excellent and the noise cancelling works well, both on its own and when listening to music, cancelling out most of the engine noise on the train and bus.

Supremely comfortable, lightweight and superior sound. The latest wireless offering from Sennheiser does not disappoint. The sound is crisp and clean and with the active noise-cancelling feature, you can blissfully work away and drown out your surrounds. I cannot fault these.

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.

The HD 4.50 BTNCs are significantly cheaper than noise-cancelling headphones from Bose and Sony designed for business travellers, while Sennhesier's NoiseGuard tech proves almost as effective. Thrown in a travel-friendly design and these wireless Bluetooth headphones are hard to argue with.

Great noise cancelling; 20-hour battery; Travel-friendly design; Surprisingly affordable

NoiseGuard tricky to activate; Headband lacks padding; Ear-cups lack ventilation