There are a variety of controller systems available on the market. They can be dedicated devices such as the DJI smart controller or simply software loaded onto a smartphone or tablet. Be mindful that in bright sunny conditions, the screen can be hard to see so a good quality large screen is important. Also, under Australian Law, you must always have a visual line of sight of your vehicle while flying. Relying on the screen alone to pilot your aircraft is dangerous and illegal.

DJI Smart Controller - Image sourced from DJI Authorised Retail Store