It is good to know that the Apollo Pro Ludicrous doesn't come with a display or Key.
To turn it on, the power button is at the base of the deck in the front, it looks like a front light!
As an alternative to the display, there are apps that you can download to view things such as your battery level, odometer, and voltage.
- IOS: https://testflight.apple.com/join/Gt8afQRO
- Android: https://play.google.com/store/apps/details?id=vedder.vesctool&hl=en_AU