Apple will begin using iBeacon technology across its 254 US retail stores starting today. The integration, first reported by 9to5Mac last month, will offer notifications about products, event and other information tailored to your current store. For example, walking to a display table about iPhones may automatically notify you about your upgrade availability and trade in options.

GPS will tell you how to get to the nearest Apple store. With iBeacon, Apple hopes to guide you around once you’re inside, whether it’s to pick up an order, upgrade to a new iPhone or shop for a pair of headphones. On Friday, Apple Inc. will begin using the technology at its 254 U.S. stores to send you messages about products, events and other information — tailored to where you are inside, provided you have downloaded the Apple Store app and have given Apple permission to track you.