The Xiaomi 13 supports the ASHA protocol.
ASHA (Audio Streaming for Hearing Aids) is a protocol developed by Google that allows Android devices to stream audio directly to Bluetooth hearing aids. This protocol is designed to provide a better and more seamless experience for hearing aids by improving the connectivity and quality of audio streaming, such as phone calls, music, and other audio content. With ASHA support, you can enjoy high-quality audio without the need for additional adapters or intermediary devices.