PRE-CACHING OF AUDIO CONTENT

Embodiments are provided for causing a playback device to pre-cache audio content in anticipation that a user will provide input to cause the playback device to render the audio content. The playback device may be configured to detect, using a proximity sensor on the playback device, movement in relation to the playback device, responsively retrieve audio content by the playback device from a networked audio source, prior to receiving a user command to play the audio content, storing the audio content in memory on the playback device, and cause the playback device to render the audio content upon receiving the user command. The audio content that may be pre-cached may be local audio content stored, on a local memory storage device, network audio content stored on a remote memory storage device, and accessed over a network, or streaming content retrieved over the Internet.