volunteers for testing headphone and earbud.

Ludwig Wilhelm Erhar Chief Engineer

Senior German acoustics engineer engaged in holistic acoustic design for over 10 years, with rich experiences in acoustic debugging and profound understanding of acoustic materials and production process.

Google literally has no hits. Somewhat similar to the name of a German Chancellor, however...

 

Forgot a link?

I'll also add that while startups are great, they usually go out of their way to provide some evidence that they're competent enough to deliver on their promises when launching a product on Kickstarter. So saying their small companies is not a free pass. Give me names and credentials or indicators of experience working with enthusiast audio, links in Chinese if you have to. But don't come in here and tell me we should just implicitly trust you because you promise it's not a scam.