The IASUS "Stealth" Bluetooth throat mic concept has been under development for some time, and the engineering and design team has been carefully evaluating its feasibility. The team has temporarily placed the concept on hold due to the high cost of development, which may not be supported by current market demand. Fully functional IASUS "Stealth" prototypes have been created, but distribution support has not demonstrated that there is enough interest to push this project forward. However, IASUS Concepts may consider moving forward with the "Stealth" Headset if there is significant customer demand.
We welcome you to send feedback or comments to info@iasus-concepts.com with the subject heading "Stealth Bluetooth Headset."
http://www.iasus-concepts.com/nt/stealth.htm