Majority touts its new Tru Bio product as a particularly sustainable example of wireless earbuds as they (their case included) are made with "eco-biodegradable" materials. They are also rated to deliver quality audio via large drivers (also compostable) and hardware that supports up-to-date Bluetooth connectivity (less so). The Tru Bio buds have an estimated 30 hours of battery life and charge back up with USB type-C. https://www.notebookcheck.net/Majority-Tru-Bio-unveiled-as-wireless-earbuds-that-are-biodegradable.692154.0.html
Looks like a certain "toy"