I recently came across this headset - theBoom Bone.

Https://www.Theboom.Com/v/products/theboom-bone-conduction.Asp

It looks like exactly the product I have been searching for well over a year. A headset with bone conduction headphones that are easy on the ears for all-day use, with a microphone that can intercept soft voices in a noisy environment.

Has anyone tried this product? Given the high price tag, I am cautious to buy this without a review.

Alternatively, it may be worthwhile for knowbrainer to reach out to them if they can send a sample. I sent an email to them, and they responded quickly. The reply was from the CEO, and not from a customer service representative. However, since their target market is not voice recognition, they were not sure if that's the best microphone for this use case. They recommended the boom Pro2. My thinking is that if boom Pro2 works, then so should theBoom bone as the microphone element is hopefully similar. Then there is also the question of connectivity to the PC for which I'm not able to find any information on their website. 

I think they may be willing to send some samples to knowbrainer and expand their target market for their products.