What makes it remarkable is that the convenience store chain used a drone to deliver the order to a family in Reno, Nev., 7-Eleven said on Friday. The company partnered with drone startup Flirtey for the delivery, which the companies said was the first time a drone has legally delivered a package to a U.S. resident who placed an order from a retailer.

But the drone delivery wasn't a casual affair.

"This delivery required special flight planning, risk analysis, and detailed flight procedures ensuring residential safety and privacy were equally integrated," Chris Walach, the director of operations for the Nevada Institute for Autonomous Systems (NIAS), said in a statement. The NIAS is a Nevada government-backed non-profit autonomous vehicle advocacy group that helped oversee the delivery.

It took two drone flights to deliver all of the items ordered, the companies said. The drone flew autonomously for one mile from the 7-Eleven store in Reno on July 11 to the family's house using GPS.