Why are you making such a shocked face...?

With the people that are knowledgeable on outside world increasing lately, you guys have been helping me out a lot.

This is a pedometer. There were also ones that you can play as a game in the past!

Ooh! Then that just might be the key to produce electricity by ourselves!

Though it's a radio, it's the type that can be charged by cranking it!

Just as I thought! Numbers has been used for all kinds of codes and such since the past.

This is a pager! If I remember correctly, you send messages by using puns on the numbers...