This works. I received mine a good 20 years ago. California at that time had a program that I was able to receive it as part of a disability. It went for $3k-$k back then. I did not pay for it. I went to a state run office that put me in contact with a researcher/speech therapist and the paperwork for it was handled by them. The device acts like a hearing aide. It works on the premise that if you have a slight echo in your ear, that you will reduce your stutter. The principle foundation being that stutterers don't stutter when speaking in group recitations (like the Pledge of Allegiance). For me it was a double edge sword. It worked. But did have some caveats. If you have excellent hearing, the additional background noise can become overwhelming. I remember going to the grocery store and being able to eavesdrop on conversations that were 10 feet away or more from me. It picked up every possible sound, not just your voice. So if you were near a loud talker, it blew out your ear. The other was that, like a hearing aide, can impact your ears. You had to be vigilant in keeping both the device and your ears clean and lubricated. It sounds weird, but I got an itchy and dry ear from it. The effects of it can also wear off in time as your brain becomes accustom to hearing the background noise, including your echoed voice. I wore it quite a bit back then. But it got to the point that I really only used it when I knew I "had" to be fluent. I definitely recommend it for anyone with a sever stutter to help you escape some of life's more stressful times...like presentations, speaking in groups when it is super important, etc. It is not however recommended for just wearing around the house to talk with your family and friends.