Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Have you tried with a different emulator to see if it makes any difference? This old thread might be helpful: https://forum.recalbox.com/topic/2882/theres-some-way-to-turn-on-fm-sound-on-master-system-emulator-on-recallbox/2
