3D Touch For More Controls in Control Center
The iOS 11 Control Center is completely new, and with it you can now 3D Touch on many of the controls to open up other options. This is super handy for controlling your phone and it makes the music and radio controls way more useful.
3D Touch on the music player to open it up for more controls and the ability to choose the sources you want to listen to. You can also 3D Touch into the Airplane, WiFi, Bluetooth and Cellular option to see additional controls. Keep in mind turning WiFi off from here doesn't actually turn WiFi off in iOS 11.
The rest of the Control Center options include a ton of options with 3D Touch from accessing your home automation accessories to controlling volume, brightness and even flashlight brightness.