This instrument is made out of wood, a paint stirrer, sandwich cutter, buttons, screws, wire, shoelace and a paper clip for the pick.
It is a member of the orchestral string family.
The sound is made by strumming the string with your finger or using a pick on the string.
The farther you put your finger on the fingerboard the lower the sound will be.
The strings need to be strummed harder or use the pick harder on the string to produce a louder sound.