All the letters of the alphabet except q, w, x, and y are within the speech banana. In addition, the letter combinations th, ch, sh, and ng, are included. These letter combinations are often difficult for people that are deaf or have hearing problems to understand or hear.
The speech banana is often used for young children. The audio will show what sounds your child can hear within the speech banana when using a cochlear implant or hearing aid. That gives a good indication of how much spoken language a child can understand.