I fell for the lies and deceit. They claim to be #1 and have the words most advanced solution. It didn't work for my twins and when I reached out to the company for assistance, they said there was a problem with my kids. They said my kids had a slow brain and needed to go for mental health treatment. Shame on you guys. You need to act your age and stand up to the bad quality of your products. My $800 are down the drain and you need to give me a refund.