LOGITECH F710 WIRELESS GAMEPAD | Logitech
Two AA batteries power the controller.
The controller works with a USB receiver you plug into your computer. The controller came with a cord you can use to extend this receiver and get it closer to you.
There is a spot you can store the receiver inside the controller. Be sure to use it! The receiver is very tiny and would be very easy to lose.
The controller also has a switch on the top to change between Xinput and DirectInput.
DirectInput is the older way of managing controllers. Most modern games will use Xinput. It is nice to have to option to get the controller working in very old games.
There is a button that also changes the main movement controls from the joystick to the D-pad. This is very useful for some specific games.