Summary: These headphones are great. Sounds come across well and are accurately reproduced. The noise cancelling is a real must have in noisy environments. Bluetooth is easy to set up and rarely drops out.
Summary: I have been a very satisfied user the MM 450-X headphones for several years. I wanted to try these around-ear headphones as my only complaint with the 450-X was that after many hours of use, there was some fatigue on my ears. In terms of comfort, these headphones are great.
Summary: Sennheiser have dropped the ball with these headphones.If you what to connect to the headphone using Bluetooth the built-in amp just doesn't have enough power to power drivers! so operate at half their potential.
At the price paid, they were value, but maybe not quite living up to the top-of-the-range billing you expected from Sennheiser
B. Knapp "Bazzoid/Sazzles", Amazon
29 March 2015
Summary: When i saw these half price I decided to go for them. They still seem overpriced to me tbh, but at half price I can live with that. The noise cancellation is OK, but being active I think it needs louder noises than hums and rumbles.
Summary: I generally don't give such a small score to anything but this product is exception. It costed me so much so I had high hopes with it. My detailed observation is as follows : 1) Noise Cancellation - it's not worth at all. I used Parrot Zik and you cannot hear anything outside noise/sound.