Yes. Assistive technology (AT) is any device or system that helps you do something your disability would otherwise make difficult, or makes it safer or easier.
The test is functional: mainstream items aren't AT just because you use them (a car isn't AT), but items that overcome a disability-related limitation are (modifications to that car can be).
AT the NDIS commonly funds includes:
AT is assessed case by case: it needs to be reasonable and necessary for your disability and your goals. Higher-cost items usually need an assessment and quotes.
Wondering whether a specific item would qualify? Curious what your plan covers? Email hello@providerchoice.com.au.