i've always said it like bowi pronounce pekoe the same ! i have no idea if its right. mine was beau. i began saying it as bee-you but i believe my mom corrected me as it was supposed to be pronounced bow or boo ? i cant remember what she said
i never used the megaphone tbh but i call him 'sigh-ran-o'For me, it's Cyrano. I have him in both of my New Leaf towns and the megaphone never recognizes my voice for him, which implies I'm pronouncing it wrong.