With Mood Media. The presence solution utilizes in-store sound technology that leverages ceiling speakers installed inside retailers to detect users inside stores. The new solution is called "Shazam In-Store."
IndoorLBS notes that in order for this work, the venue needs to have the new speakers from Mood Media installed in the store. The only retailer that we are aware that has the new speakers installed include Office Depot.
With iBeacons starting to penetrate retailers, the timing for this alternative indoor proximity solution is questionable. Actually, this Mood Media solution existed long before iBeacons but it has not gained much traction. In addition, this solution only enables store-level location accuracy, not department-level, or aisle-level, like iBeacons do.
Also, keep in mind that Apple has a close partnership with Shazam too..