To make the best use of trainings, it is recommended: 

BrowserYou can use Safari, Chrome, Firefox or Internet Explorer 10. It is strongly recommended to get an up-to-date version. 

Internet connectivity: It is recommended 1 mb/s or above.

Operating system: All operating systems using a web browser.

Others: Please make sure you can use html5. If you do not use it, you will need Adobe Flash Player.