The GX-10 does not have DIN-5P or Stereo miniature phone type MIDI ports. To transmit and receive MIDI data with external MIDI devices, connect the GX-10's USB port to a computer and use a DAW (Digital Audio Workstation) to handle the MIDI data transmission. Please use a USB cable that supports data transfer.
By connecting the Bluetooth® Audio MIDI Dual Adaptor (BT-DUAL) (sold separately) to the rear Bluetooth® ADAPTOR connector, you can control MIDI using the EV-1-WL or FS-1-WL (sold separately) units, or any footswitches or expression pedals connected to them. For details, see "EV-1-WL Connection Guide (Connect with the GX-10)" and "FS-1-WL Connection Guide (Connect with the GX-10)".