The USB-C to 3.5 mm Headphone Jack Adapter lets you connect devices that use a standard 3.5 mm audio plug — like headphones or speakers — to your USB-C devices.
Product page: https://www.apple.com/shop/product/MU7E2AM/A/usb-c-to-35-mm-headphone-jack-adapter
The Sony MH755 is the bundled in-ear earphone for the Sony MW600, SBH20, SBH50, and SBH52 Bluetooth devices.
Radsone EarStudio ES100
Bluetooth receiver and USB DAC with 10-band graphic equalizer
Sport in-ear monitor with 5-band parametric equalizer
True wireless sport IEMs with built-in 5-band parametric equalizer
Jabra Elite 65t
True wireless IEMs with built in 5-band graphic equalizer