It is the same mandolin. It is a musical stringed instrument similar to the mandolin, cordate or oval body and usually four strings.
Mandolin: Utensil cut serving to cut some vegetables into julienne strips, potatoes into strips, goufrettes, or chips, to finely slice the fruit, grate cheese, etc.
It is a musical instrument of 4 double strings, which is part of the family of the string instruments.