For those who have digitalized their music collection, the "air play" feature works like charm once the unit is connected to your network

The receiver also has a nice standby feature where it clicks off and goes into standby mode after sitting idle for awhile, but immediately wakes up upon receiving a signal from an AirPlay device.

If I hadn't liked the rest of the receiver's features and performance for such a low price, I would have returned it.2

The app is free & full featured.

I'm a vintage enthusiast but there are just so many nice features in modern receivers, like controlling it from an app, sleep mode, etc, that I finally caved.

The clever R-N303BL so informed the MusicCast phone app, which in turn apprised me of its need on the app display.