This is the electronic violin "evio" released in 2003 by Tommy (now Takara Tomy). Series: It was announced as the first product in the electronic musical instrument series "Simple Concert." Concept: This product aimed to realistically reproduce the sound of a violin and make it easy for anyone to play. Features: In addition to playing the instrument on its own, it can also be connected to a TV for enjoyment. Junk item Does not work even with batteries. Some parts may be missing.