Makes great service but at what price ...

This product works perfectly and is of very good quality. I was impressed by the speed without loss.
No cables to pull, that was the purpose of this purchase.
Nevertheless, after a few days I felt a slight headache, nothing too bad, but good.
By searching the Internet, I read here and there that there was release of electromagnetic waves more or less important,
whatever the brand, it is the very principle of this technology.
So, I decided to take a wifi repeater of the same brand.
This remains waves but it is certain that I no longer have a headache. And then we bathe all in the wifi today
like it or not! So, why do I cumulerai two different waves?