See https://www.avshop.ca/recording-controllers/audio-keystation-88-keyboard-controller?gclid=EAIaIQobChMItMK4rofZ2gIVAttkCh0DMwiqEAYYASABEgJJ5PD_BwE
Must sell
If you need a midi module to go with this let me know I can make some recommendations or you can connect this up to your ipad with the camera usb kit - i can tell you exactly what you need.
You can use this unit with your phone as well with an OTG cable