Nelson Silva on Instagram: "Otamatone + Guitar Pedals All sounds are coming out of the mouth, and what you hear is the raw sound from the mic (the mic is behind the pedals in this video) To learn more about the pedal that makes this possible, check out the previous videos on my page! Thanks to @pcbway for manufacturing my designs and making this project possible! #Otamatone #HameeUS #MaywaDenki #オタマトーン #guitarpedals #diyelectronics #circuitbending"