HTC might be planning a return to the smart mobile market with new TWS earbuds. These products have been spotted on the database of the Taiwanese regulator NCC ahead of their lauch. This leak indicates that these new accessories have a Sony-clone look and can use Bluetooth 5.0.
https://www.notebookcheck.net/A-new-leak-spoils-the-launch-of-HTC-s-next-TWS-earbuds.506460.0.html