AirPort Express

The AirPort Express was the first AirPlay device to receive streamed audio from a computer running iTunes on the local network.

DTS-encoded CDs ripped to Apple Lossless audio files - which decode as digital white noise in iTunes - will play back correctly when the AirPort Express is connected via TOSLINK to a DTS-compatible amplifier–decoder.

[8] OS X Mountain Lion introduced AirPlay support, a feature to output Mac system-wide audio directly to AirPort Express.

For Windows and Mac operating systems (before OS X Mountain Lion) there are a few software options available for streaming system-wide audio to the AirPort Express, such as Airfoil and TuneBlade.

[16] On November 21, 2016, Bloomberg reported that Apple had disbanded its wireless router division, "according to people familiar with the matter.

"[17] In an April 2018 statement to 9to5Mac,[2] Apple announced the discontinuation of its AirPort line, effectively leaving the consumer router market.