The rajao is a 5-stringed folk instrument from Madeira, Portugal.
The tuning is very similar to the ukulele, just one extra string and certain strings at a lower octave. The strings are also different than the ukulele, giving it a more energetic sound
Now, I don’t have much experience with the rajao but from my experience this instrument is very good quality, and, like any Thomann product, definitely worth the price.
I completely recommend :)