What a disappointment! A constant background noise such as hiss you hear in all silences and low volume. This quickly becomes unbearable.
I have 2 other Sennheiser:
-1 Without RS130 wire (similar to the model apparently abandoned RS120 but with the "Surround" function) which sometimes has a defect of parasites. This defect is ultimately much less "catchy" than the RS170. It also has a sound with more relief than the RS170 is far too flat. For example, a few even carried ear hears the difference in the surround sound of a movie that are present on the RS130 and the RS170 completely absent.
- My other is a wired headset HD600. There is day and night. He buries all wireless. The sound quality is simply sublime. The investment is however not the same.
My advice:
If comfort is wireless you need, I sincerely do not recommend this highly Sennheiser RS170 has a big flaw of background noise in sound transmission and above all sound without any relief. I do not understand the rave reviews for this product. You may turn to the RS120, cheaper but ultimately remains a good product. If you find the RS130 at good price, "Surround" function is a plus.
If the sound quality premium for you, turn without hesitation to a wired headset. You will find Grado, Sennheiser AKG or even cheaper products, more comfortable and incomparable sound quality. Just remember to buy an extension cable you will have for a few euros.
Finally, finally, I am pleased to have made my purchase on Amazon as they did refund my product very quickly with a pre-paid label for postage. Thank you Amazon!
They say it is in the difficulties we recognize his friends.
This is also when we have a problem which is identified "serious merchants" of the Internet.
I hope this review helps. Enjoy shopping!