When the performance calls for a two-turntable layout, reserve both decks and identify the compatible mixer as separate parts of the system. The accompanying image shows two Technics turntables arranged around a Pioneer mixer; it illustrates the layout, not an automatically included bundle.
Before load-in, record which components are coming from Miami Sound Rental and which are supplied by the DJ or venue. That distinction helps prevent a turntable reservation from being mistaken for a complete DJ booth or sound system.