Is this site dodgy or legit

[Series1boy]

As above. It says they are part of hmv, is this right and has any one used them?

http://www.xtra-vision.co.uk

 

[BIGBERNARDBRESSLAW]

https://en.wikipedia.org/wiki/Xtra-vision

 

[Q5]

As above. It says they are part of hmv, is this right and has any one used them?

http://www.xtra-vision.co.uk

Perfectly OK, use them myself.

 

[Series1boy]

Excellent, thanks both!