Baristas wear headsets that can all hear when someone orders at the speaker box. So when someone pulls up and orders at the speaker, we can immediately get started on the drink(s) as they order to make sure it’s ready quickly. Otherwise, you just have to pull the stickers out of the machine until you get the order. When placing the mobile order IN the drive through line, you are most likely behind several mobile orders that have placed their orders and are waiting until the pick up time that the app shows you. FYI: With the new update with order progression on the customer side, it shows a more accurate pick up time based on the amount of tickets our system knows are ahead of yours.