“To build our initial version of the cage, we lined and wrapped a cardboard box with Aluminium foil.”
Apple ships a hearing aid feature in AirPods Pro 2 and switches it off outside the US and a few other countries. Three people in India got it running for a grandmother by wrapping an iPad in foil and spoofing its location until it forgot it was in region IN. Hearing aids there cost ₹50,000 to over ₹8 lakh. The hardware already sat in her ears, and Apple’s region check was the only thing in the way.