Excerpt: The sound quality is very good - well balanced, good high and mids, good bass but not too bassy. The talk through feature is excellent and very handy. The 550-Xs are well made, compact and comfortable. My gripes are that the carrying case is more of a nylon pouch that is not protective, and the noise cancelation is nowhere near as good as the Bose QC25 (which don't have the sound quality of the 550-X).
Excerpt: I use this for phone conferences and listening to music. The sound quality matches my bose unit (bluetooth and with the cord). Generally I leave noise cancellation off, except when flying. And then it is quite effective. Reviews on another site repeatedly mention low volume, even at maximum levels.
Excerpt: These are 'Made in China' NOT in Germany. For headphones in this price range, you'd think they could manufacture in a developed country. That being said, they feel solid for Chinese manufactured goods. Also, what's up with the really cheap soft case for such expensive earphones? Even the Bose QC15 comes with a solid case, but these have a smaller footprint in your bag, and the Bose wire is so flimsy.
Excerpt: * This product is essentially used for home-use: listening to Pandora or TuneIn Radio from either my LG Phone, or Blackberry, or iPad. **** Great: 1. The quality is above average for sure. The controls are smooth and easy to operate - as long as you read the instructions. 2. The Bluetooth connection (recognizing and connecting to devices) is pretty smooth and straightforward. 3.
Excerpt: I bought a pair of the Sennheiser MM 550-X Bluetooth Headphones about two months ago and waited to write this review to experience the good and bad features of these headphones. Because of the cost, I did a bit of research before I made my decision. In my research, I found reviews, some good and some not so good. Some reviews indicated that the sound quality and noise canceling qualities were not as good as it should be.