The premise of the device is intriguing, but it's not quite clear to me how it actually works and how accurate it is.

Could you tell us a little bit more about the underlying technology and have you done any studies that show its efficacy?

P.S.
The landing page has a misspelling. It has "beggining" :)

It looks very interesting, although I've not been able to confirm if the email subscription works. Does or will it use a built-in accelerometer and is connected to an app? How about adding something stronger than a vibration? Perhaps vibration to alert... but if slouching continues... then follow the example of Pavlok and deliver an electric shock!

You are tackling a genuine problem here. Be interesting to see how it works and how effective it is, and the price.