It’s funny seeing people react to anachronisms in fantasy like they’ve never seen them before - completely forgetting that Naruto exists in a world based on Japan during the Sengoku Period where they also have TVs, VHS tapes, computers, radios, video games, and other modern amenities.
Let me also cut anyone thinking otherwise off by saying that they run on coal and hydroelectric power, not chakra.
In a story about a superhuman knight and a wizard living inside a dragon and “purifying its stomach acid into drinking water” with magic, sometimes you just have to accept that you’ve already suspended your disbelief and having an electric fan in the background makes the world feel less cookie-cutter.