The ability of the child to produce language to communicate with others. Fixation device :: A small accessory that is attached to the battery pack that allows it to be connected to the clothing. One fixation device can accommodate a small safety pin or diaper pin. FM system :: An assistive device that consists of a microphone and transmitter worn by the speaker, and a receiver worn by the listener. In the case of the implant, the receiver must somehow connect to the speech processor, usually with a patch cable. An FM system sends the speaker's voice to the listener using FM radio waves to help overcome the problems of distance and background noise.
The process of formulating and sending a message is called expressive language. One way to express language is through speech. Other ways are through sign language, pointing to words and pictures on a communication board, or formulating written messages on a computer screen.