You can buy it anywhere. All our Apps are web-apps so they are Hardware agnostic, they can run in any devices with a web-browser.
For the Players you can use Professional Smart Tvs or Displays+PC. We sell a player called Ara Box, but that is just a suggestion.
For the Terminals you can use any Tablet (Android or Apple), PC or even Smartphone.
If you need a Ticket Dispenser you can buy that from us.