Amazfit claims that its ZenBuds are capable of enhancing sleep or relaxation due to their active noise cancelling (ANC), health-tracking and other properties. The brand has finally announced details on how this version of the truly wireless (TWS) earbud will be premiered: as a reward on its upcoming crowdfunding campaign.
https://www.notebookcheck.net/Amazfit-will-launch-its-ZenBuds-via-Indiegogo-at-the-end-of-June-2020.477328.0.html