Dear "capgain"
Thank you for your question. While exact figures are not available, we can tell you that this is a billion dollar industry. This is when you take into account the unit price of the in-mask microphone and the number of masks used by firefighters, HAZMAT teams and emergency personnel in the United States and Canada.
We will try to get a more precise figure, but, for the meantime, we hope that helps.
AGORACOM Investor Relations