Control Center is a way to get at all your toggles, sliders, buttons, and basic actions, all in one place.
Since it's debut in iOS 7 back in 2013, Control Center hasn't changed much. Pull it up from the bottom of the screen and you get quick access to a variety of options. The top row gives you airplane mode, Wi-Fi, Bluetooth, do not disturb, and orientation lock. Next is a brightness slider. After that is media, including play, pause, skip, and volume. Then you have AirDrop and AirPlay. Last row is flashlight, timer, calculator, and camera.