What are AAC devices used for?
AAC stands for Augmentative and Alternative Communication.  AAC devices provide a way of communication for those with speech impairments.  They can be used by people of all ages.  There are various kind of AAC devices such as symbol cards or high tech mobile apps.
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
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1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
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system
(Optional) Context information is below.
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Answer the following query.
What are AAC devices used for?

user
AAC stands for Augmentative and Alternative Communication.  AAC devices provide a way of communication for those with speech impairments.  They can be used by people of all ages.  There are various kind of AAC devices such as symbol cards or high tech mobile apps.
assistant