Otamatone [Melody Series] Japanese Electronic [Mini Size] Musical Instrument [11 Pre-Programmed Songs] - Black or White Random One of Japan's best-selling musical toys - now in a mini kids version that teaches rhythm and meter with several fun, built-in tunes! Press the buttons on the flag of the otamatone's music note shape to select a song, then press the stem at the correct intervals to play along! This adorable little toy is perfect for teaching very young children the basics of timing and rhythm, plus they'll love making it sing with the mouth on the notehead Otamatone Melody Comes with an optional keychain attachment so you can bring it wherever you go Runs on CR2032 button battery (x1)