1. A method comprising: receiving, by a first playback device, control information via a network interface configured to interface the first playback device with a network; in response to receiving the control information via the network interface, entering, by the first playback device, into a synchrony group with a second playback device; and after entering into the synchrony group with the second playback device, (i) receiving, by the first playback device from the second playback device, audio information, playback timing information, and device clock information of the second playback device and (ii) playing back, by the first playback device, the audio information in synchrony with the second playback device using the playback timing information and the device clock information, wherein the first and second playback devices remain independently clocked during playback.