I have confirmed that it is working. Sound and buttons respond without issue. (※The screen may not display if the battery is positioned incorrectly, but it will work fine if you adjust its position slightly or lift it up a bit.) ⚠️Batteries will be removed before shipping. I played with this when I was a child and have stored it in a dark place for a long time. The main unit only, no strap included. ■Stored by a private individual ■I have a cat Thank you!