What is the Launch Control feature in an Audi R8?

I've heard about the Launch Control feature in Audi R8s, but I don't really understand what it does. Can someone explain it to me?

Launch Control is a feature in the Audi R8 that helps you get the most out of your acceleration. It works by automatically determining the optimal engine speed and engaging the clutch, giving you perfect traction off the line.

Launch Control is a must-have feature if you want to get the best performance out of your Audi R8. It helps you achieve the perfect launch every time, giving you an edge in any race.

Launch Control is a feature that allows you to launch your Audi R8 with maximum power and minimum wheel spin. Just activate it, press the accelerator all the way down, and let the car handle the rest.