Shidou keeps on saying he has no compatible devices for his inventions, but there's literally the terminal people use to listen to Streamer. He should stop making new stuff and tinker with his terminal first to include audio jack and other ports for the devices he invents.
He said his inventions are based on Streamer, so maybe if earbuds are to hear his voice clearly, then flash drive is probably to save and store voice recordings.
Took me till now to realize the inner circle are essentially his mods and just like real moderators they desperately try to get with their streamer oof