It is probably using the Message Access Profile[1], commonly used by cars. Its likely very stable, but is very limited. 1: https://www.bluetooth.com/specificat

It is probably using the Message Access Profile[1], commonly used by cars. Its likely very stable, but is very limited. 1: https://www.bluetooth.com/specifications/specs/message-access-profile-1-4-2/ https://www.bluetooth.com/specifications/specs/message-acces...