Official Homepage:
https://retro-bit.com/sega-genesis-bluetooth-control-pad-black.html
Updating the Firmware
Download the latest firmware here: https://retro-bit.com/controllers-support
LED Modes:
(note: Your controller may appear as an Xbox controller while in X-Input mode.)
LED 1 = Nintendo Switch Pro Controller Mode
LED 2 = ?
LED 3 = X-Input Mode
LED 4 = X-Input Mode
Bluetooth Search = Hold A and Home
Turn the controller On = Hold the Home button for 3 seconds.
Turn the controller Off = Hold the home button for 3 seconds.