When you want that added cooling boost just place the included USB plug into your MacBook Pro to activate the FLOWthru Cooling blower and system. While FLOWthru Cooling is there when you need it, The TILT was designed to handle normal every-day-use without FLOWthru Cooling and still ventilates and acts as a heat shield. The FLOWthru Cooling system and USB plug are all integrated in The TILT so just plug it in when you need it, or store the cord in the side compartment when not using FLOWthru Cooling.
The FLOWthru Cooling fan is technically classified as a blower as it pulls in cool fresh air from the outside and is directed by FLOWthru guides that direct the cool air across the hottest areas below the MacBook Pro. The heated air is then guided and pushed out the rear exhaust.
The TILT's intake is directly below the MacBook's intake, on the right. The TILT exhaust is directly below the MacBook's exhaust, on the left. It is literally a boost to Apple's current MacBook Pro air flow systems.
This is an entirely different approach to typical cooling pads as the majority have a generic fan placed in the middle that pushes air straight up but with no guidance. This results in air pushed in all directions with little to no cooling effect and has no chance of reaching the hottest areas of the MacBook Pro.
Apple did a great job on the overall layout but the consequence of the aluminum bottom plate acting as a heat sink is that it gets so hot that they can no longer classify it as a "lap top" because it will burn the top of your lap! The TILT and FLOWthru Cooling solves that problem.