For each exhibit, you can add text, photos, audio files/narratives, and video (external links). You can also specify the location of the exhibit (either on an external map or on the floor plan of an interior).
It is worth noting that you can have texts and stories in as many languages as you want as well as have different texts depending on the age of the visitor (ProxiTour supports 3 age categories: elementary, high school, and adults).