The Multi card must be place on the ticket reader, and a trip will be discounted with each validation. The validation screen will inform of the card balance by counting the available tickets.

Example:

A card with two ten-trips ticket charge of the zone fare A-B2, making the third validation, the screen will show that 17 trips are remining.

It is possible to make with a same Multi card as many validations as travelers using the service but they must remain with the card holder.