The eavesdropper have a really good fit. Since this is, as with many other things is a mass product, it is also certainly people who deviate more or less from the ground with her head, or ears. Therefore: "Try before".
The digital, absolutely interference-free transmission, the sound quality (of course with the "right" fed material, ie min. Dolby 5.1 and higher, such as 7.1, DTS, ect ...) is for two "speakers" of this size about every doubt.
We are talking still about headphones and does not have a 5.1 / 7.1 Devil, or Bose surround system. Unfortunately here mosquitoes are often compared to elephants!
This affects also the many comparisons with the Sennheiser RS 180, of an excellent product is also no doubt.
The Sony is clearly in a good quality, audio-striking film that comes either directly from the Blu-ray player, or an AV receiver at home (so for Home Cinema). To transfer the TV audio signals in superb quality digital, not necessarily count as its strengths. Sufficient to good (depending on broadcast) he gets that with a reasonable adjustment ("Learning by doing") but also all go there.
These headphones already gets a on his station by a fiber optic cable digitally delivered transmitting audio.
Of course you can thus listen to music. Who but this is now only preferred and often enjoys, should then really to compare, for example. take a Sennheiser and only then decide.
For if a Sennheiser RS 180 aims clearly primarily towards the musical listening pleasure. Of course, one can thus watch a good movie also.
This headset gets delivered to his station an analog transmitting audio.
The range is like a DSL line: "..... to 16MBit, or in this case, here up to 100m".
Honestly. Such distances for a headphone needs but virtually no one.
But one thing is clear. Normal partition walls (plasterboard), or brick walls are easy and trouble-free surmountable for Sony. With massive reinforced concrete floors it has, however, no chance.
It is however clearly indicated by Sony. Up to 100m "free" in view. Therefore, here's my lack of understanding about some statements.
I do not go but into the basement to watch a movie / listening to, which is broadcast on the television in the living room!
All reasonable AV receivers also feature an optical digital output. However, some of the signal to the transmitting station of the headphones can not be transferred when the fed component (Blu-ray - / DVD player, TV) is connected to the receiver via HDMI.
The reason is quite simple. This receiver can only spend further the optical digital signal when visually get it digitally from the component.
But do not despair, because the solution to this is also very easy. Eg. the Blu-ray players connect directly to the Sony, which then does its work well.
The downside: If you want to tap into another source (eg TV.), You have to stop plugging the cable. While not beautiful, but this disadvantage is always preferable in my view a possible "forced" discontinued HDMI connection.
For an evening "Ego" -Filmgenuss in excellent, trouble-free and convenient audio quality these listeners are highly recommended.