AVT is a type of therapy that uses a hearing aid or a cochlear implant to assist a child to understand speech and learn to speak. The child has been taught to listen attentively and to communicate clearly. AVT entails supporting deaf and hard-of-hearing children in developing self-sufficiency, participation, and productivity in a regular learning environment. V-Listen provides you with world-class service. For more details please contact us~! 9999008937.