<Li> A trigger pad beneath the concrete to activate the microphone and headset, possibly augmented with a CCTV camera </Li> <Li> One or more free - standing signs listing the menu items, called a menu board </Li> <Li> Newer drive - throughs feature a LCD or LED display within the speaker system in order to show the full order and total cost to avert order errors through miscommunication . At many Brands of restaurants, a secondary display featuring the total is placed directly next to the order window . This is to ensure that the customer will know if the cashier intentionally overcharges them . </Li> <Li> Windows where employees interact with customers by processing the customer's payment and giving them their order . Most drive - throughs have either one window serving both functions, or two windows with the first being used for payment and the second used for retrieving the order . </Li>

When kuwaits first mcdonalds drive through opened the queue was how many kilometres long