How to turn a PS4 on or off, or put it into Rest Mode, using the controller or system

You can turn a PS4 off or on using either the power button located on the console or a paired or connected controller. Here's ...

How to connect a PS4 controller to your PS4, and charge or add controllers

You can connect a PS4 controller using the micro-USB cable that comes with the device. But connecting a second one requires a different method.