iBeacon

Installing beacon devices -- which transmit information straight to your smartphone -- into 275 designer eggs throughout NYC was quite an undertaking.

Still confused about iBeacon, PayPal Beacon and beacon technology overall? Here's your primer on the retail-changing tech.

Retailers want to be able to gather the same data that they gather online at their brick-and-mortar stores. Now, thanks to smartphones, retailers are increasingly able to track your every move.