I submitted this comment on ProductHunt too but I wanted to make sure you see it:
Looks great but FYI there's a long-standing healthcare company that's been in business for over a decade with various speech products/features named "Vocera"[0]. I'm not a lawyer but they have many trademarks on Vocera and the standard is generally "likely to cause confusion". You're probably well in that territory with a speech product that sounds almost identical and is one letter off. When Googling "voicera" Google replaces/suggests "Vocera". There's a pretty decent chance you'll be hearing from them.