Systems, methods, software and apparatus enable low energy communication of audio data between an end user device and an associated intermediate communication device. Audio data is transmitted between the end user source device and associated intermediate communication device by cyclical updating and low energy transmission of data values as audio data packet fragments representing the audio data, which are assembled into audio data packets by the associated intermediate communication device. Packaged audio data is transmitted from one intermediate communication device to another intermediate communication device that is associated with an end user sink device. The end user sink device's associated intermediate communication device unpacks and transmits audio data packet fragments to the end user sink device by cyclical updating of and low energy transmission of data values as audio data packet fragments representing the audio data that are converted into acoustic signals.