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.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What are AAC devices used for?
### Input: 
### Response: 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.