It's not AA, but these little wifi router/flash storage combos work great for that. I use mine on planes when we travel.

https://www.amazon.com/dp/B07P5QDQ1B/ref=cm_sw_r_cp_apa_fabc_CsSWFbNPMX314

The one I have acts as a DLNA server--all you need to do is connect to the network it creates. No internet necessary.