He said it's a proprietary compound that HE designed, Dr. Incredulous. He's just being coy. He's been doing it for about 10 years and some folks told him it works.
He says "they've" or more accurately "thoyve." Notice he doesn't have one on his phone. He's introduced as their Technology Editor, too. The dogs; they can be called off.
"It transforms radiation going into the phone into something that's in harmony with your body's natural frequencies. Its scientific. I designed it and have been using it for 10 years. I don't know what its made of. Some people claim to have run trials, but I don't know. I assume it works because when I talk for a few hours, I get tired."
Its like he knows what a scammer he is, and is warning people that he's full of it.
I used to laugh at "fnord" jokes but I've noticed that most people are literally unable to comprehend the words "could" and "may" when used in an advertisement.