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.

Love everything about the product

These allow you to run them with the cord if the battery dies. That's a handy function! --Noise cancelling is sufficient. Once you make it to the Bose, Sennheiser, JBL group of cans, the playing field is more about preference.

Active noise cancelling Low price Good sound quality

2.5mm cord on the can side, 3.5mm on the phone side; Use the same size on both sides! 3mm on a 40mm thick can is a drop in the bucket

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.

Uncomfortable and peaking at moderate volumes. The stock earphones that came with my galaxy s8 are better. I also think they're made for pixies They don't seem to show images of the earcups anywhere, but I'll tell you now: the space for your ears is far too small. It's horrific.

These headphones have been great so far. Battery life is insane and sound quality is better than I would expect for a $100 pair. Bluetooth range is really long, and you can also plug these directly into your computer using the aux that comes with them. Bass is really crisp, but not super heavy.

Best sound quality of any headphones I've ever owned and extremely comfortable. Unfortunately the supplied audio cable (I use these with a number of devices that don't pair with wireless headphones) gave up the ghost and started making the audio crackly and quieter after about 5 uses despite me...

Great sound

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...

For a price of around 199 euros, Sennheiser offers an enticing package with the HD 4.50BTNC, combining quality sound, functionality and convincing performance into one neat product. Even better, you'll be able to find the model in specialist shops at an even lower price of around 140 euros.