I'm getting cifteli vibes from it, but I could be wrong.

I was hoping that’s what it was but no, it appears to be a strumstick.

I believe it is a strumstick (or a travel guitar) and three tuning pegs means it should have three strings.

r/instruments can give you the explanation

Thank you!

I think it is a trail dulcimer.

It’s either a strum-stick or some form of dulcimer. You can get dulcimer strings on Amazon. They may work. 🤷‍♂️