Drone delivery has plenty of challenges: engineering, regulations, noise, cost, safety and public acceptance.

Butdrone delivery is spreading to millions of peoplearound the world as startups and tech giants work out the kinks.

For now at least, there isn’t any delivery fee.

The operations will extend about six miles from the Walmart store.

Companies like Wing andZipline have made hundreds of thousands of deliveries.

The Dallas-Fort Worth area is a hotbed for the technology, with several companies operating delivery services.

The company is evaluating multiple drone delivery options.

In 2021,Walmart invested in DroneUp, a Wing rival.

And it has a deal with Zipline too.

Other drone delivery companies include Amazon,Drone Express,MatternetandMann.