Otamatone
These electronic musical synthesizers are defined as any of eighth note-shaped several small- to medium-sized is an electronic musical synthesizers, and are members of eighth notes with smileys which bear opening a mouth. It was created in Japan by the CUBE toy company and the Maywa Denki design company. The creation of the otamatone was  led by the brothers Masamichi and Nobumichi Tosa.