It’s the lowest-tech device that can do this with sufficiently low running costs to make it free. Much better than the more common infrastructure of QR codes and a server.
And there are hiking trails with information panels that have this technology (the button switches languages) for accessibility to the visually impaired.
terranoid@lemmy.cafe 1 month ago
a hand crank speaker is too much tech for you and youre posting on social media?
mirshafie@europe.pub 1 month ago
It’s a hand-crank speaker with a button!
ChaoticNeutralCzech@feddit.org 1 month ago
And capacitors that last as long as the longest track so you crank it up in a few seconds and don’t have to keep turning.