Excerpt: Chose these over the RS180 as these are closed with better physical blocking of ambient noises. I'm a tough customer (electronic/audio engineer) but am very happy with the RS170. They are cleverly designed and the sound is very good. Bass and treble is not quite as good as wired headphones of the same cost, but still good, and there is no hiss, a minimal transmission delay, and terrific battery life.
Excerpt: Clear sound for both music and cinema. Without surround on you get crisp clear sound for music and with a press of a button it changes to surround sound for watching a movie. Really sounds like you have speakers behind and more in front. Great price - arrived in 2 days. really happy so buying another pair of just the headphones (HDS170) so both of us can listen to the same sound at the same time.
Excerpt: decided to upgrade to the rs170, so far so good, great range and not many dropouts throughout my house, audio quality is great/fantastic. when it drops out of range it just cuts out with a quiet beep and no static noise. Also no static noise when the audio is not playing after a period of time. Overall very comfortable and fit very well without falling off. im glad I decided to upgrade from my RS120.
Excerpt: I actually ordered in the RS 180 which are not listed in store, but they are very similar in specs and design. These headphones are absolutely amazing, I hear sounds and music like I've never heard before. Crystal clear and dynamic. The best quality sound I have ever heard. At the price you would want them to want for nothing, and as far as sound goes, this is true. Wireless range however is only good for freedom around the house.
Summary: Perfect audio experience. I have never used wireless head phones because I thought the quality of wired headphones is a lot better. But this Sennheiser RS170 has proved me wrong. So now I am freed from wire and audio quality can still be preserved. There are some minor issues: 1) the headphone is a bit heavy (I have a weak neck) and 2) if you are wearing glasses than you'd better take it off first or the cups may not cover you ears tightly.
Excerpt: I bought for myself a Sennheiser RS-170. I am an audio and video lover and my previous (several ones) headphones were not up to my satisfaction level because either the quality of the sound (hiss, interferences, etc.) or reach. I have installed the Sennheiser very easily with a very straight forward procedure and in few minutes I was enjoying of its quality. No more hiss or interferences.
Pros: Quality of sound and reach
Cons: A little more expensive than similar products