Hi @cctvozb, thank you for the reply. The Tobii 4C is designed exclusively for gaming and interaction purpose only and the use of this equipment in a laboratory setting for research or analysis required the purchase of a special licence to do so. However, due to a change in Tobii policy, we are no longer issues research licences for the 4C (or any other Tobii Tech device)
However, if you are already in possession of the professional or research licence from an older transaction, please let us know and we should be able to find your the information you require.