Headphone Simulation is a native feature of both MSFS 2020 and MSFS 2024 that we support in the F70 & F100 Professional. Headphone Simulation can be enabled/disabled in the settings of the respective simulator:
MSFS 2020:
Options > General Options > Sound > Communications > Headphone Simulation
MSFS 2024:
Settings > General > Sound > Headphone Simulation