The Otamatone (Japanese: オタマトーン, Hepburn: Otamatōn) is an electronic musical synthesizer. Shaped like an eighth note, the ribbon controller on its stem is used to control pitch, while the notes produced by the synthesizer are played from the Otamatone's "head". It was developed in Japan by the CUBE Works toy company and the Maywa Denki design firm, led by the brothers Masamichi and Nobumichi Tosa, and is produced and marketed by Hamee.

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