I bought these for my 93 year old mother who is VERY hard of hearing. She could not afford the expensive hearing aids. Previously I bought some earbud syle. They did not fit properly and kept falling out. With these, I was able to fit her ears with the many size domes they send along. My mother's hearing was greatly improved with these hearing aids. Now I am able to have actual conversations with her! The charging box was very easy to use. I would recommend this product.