Lenire is not a test. It is a therapy. You wear a head set with sound, and an appliance that goes in your mouth that sends a frequency to your tongue. I believe it is a one hour therapy session each day. I’m not sure, but I think at this point you must buy the system, but some doctors might have it available to patients without purchase.
It is fairly new and not widely available.
I asked my Audiologist to research more for me, but he hasn’t gotten back to me.