Once you turn on AirDrop on your Mac, you can use Bluetooth to send and receive files from other Apple devices wirelessly.
You can turn off AirDrop on your Mac easily, simply by going to the AirDrop menu in your Finder and setting your visibility to "No One." Here's how.
In case you didn't already know, AirDrop is a feature exclusive to Apple devices like an iPhone, iPad, iPod touch, and Mac computers. It basically allows users to wirelessly send photos, videos, ...