Sony has released the WF-XB700 earphones: TWS devices designed to incorporate this OEM's EXTRA BASS technology. They also have an IP4 rating against sweat and water-splashes and ergonomics that may help them stay in the user's ear. These new accessories will become available during April 2020.
https://www.notebookcheck.net/Sony-announces-new-TWS-earphones-with-EXTRA-BASS.459706.0.html