 Once you get the system, you can subscribe to this app for $10 a month, and on it you'll have 10,000 different frequencies, and you can search through them very easily, just like this. So let's say you want something to do with hearing, or with type earring, and then on the app there's hearing disorders, and hearing loss, or anything like tinnitus, we have that, so before I go on, none of what I'm claiming, I can't say that it's going to heal anything, but these were used by lots of different scientists around the last 80 years or so.