Open System Preferences and go to Bluetooth.

Power: requires two AA batteries (included).Includes numbers for remote data entry with functions like Cut Back.Rubber molding to protect against drops.Highly responsive scissor-mechanism keys.If your machine does not, you can get a bluetooth USB adapter. Note: To use the controller via Bluetooth, your computer must have Bluetooth capabilities. Most modern laptops have this. No batteries are required when using USB. To use the controller via USB, simply plug the provided USB cable into the controller and then into your computer. Our updated controller can be used via Bluetooth or USB. And the hotkeys are fully configurable, so if you really like a feature that is not on the keypad, you can move it there. The most useful animation tools are available through the Dragonframe bluetooth keypad, allowing you to stay focused on animating instead of hunting around with the mouse. Our new bluetooth keypad is wireless, shock resistant and super responsive.

Dragonframe bluetooth controller