You can target to GEO, OS, device, keywords, categories, etc.
We recommend you to create a test campaign to see all your options. We are adding new targeting features continuously, so if you don't find something you need, just let us know and we will add it to our system as quick as possible.
You can have multiple targeting options enabled, for example: you can make your campaign to run only on tube sites, US/UK/CA countries, for desktop computers only, shown twice a day per user.
You can also select certain spotID-s to target your campaign to individual spots.