The Hyperacusis Network Message Board has an interesting thread regarding the ZEM. The thread can be seen at the Hyperacusis website
One of the posters (Francis) to the board had this to say
"I must add that as I sat in my car, ready to leave the parking lot,
I cried with joy and gave the Lord thanks for this
spectacular invention!
I close with Dan's words, in sincerity, "it is unlike anything else you have ever used."
