The Wearbuds are well known as the first true-wireless (TWS) earbuds that come with an innovative wrist-band into which they can slot and use to charge, rather than a case that has to be carried around. Now, their maker Aipower has unveiled an updated version of the same at CES 2020.
https://www.notebookcheck.net/Aipower-updates-its-Wearbuds-with-a-Pro-variant.449460.0.html