Hey Mr X,   Yeah, I saw some of those... what seems weird to me is why there seems to be no commercial products available, hence the question to you guys.  Maybe its just a case of most people don't need a separate unit cos they are not so hard on the ear hardware.   If thats the case, can I...

Hi Folks,   I tried looking through the topics and sections here, but most of it is over my head.  If someone has the patience to dumb down an answer for me I would be most grateful.   My son has Autism.. this means that background noises can really (and I mean REALLY) distract him and...