A portable communication device configured to communicate with multiple other portable communications devices, comprising: a user interface, one or more digital processors in electronic communication with the user interface, and at least one memory in electronic communication with the one or more digital processors, the one or more digital processors and the at least one memory are collectively configured to: implement simultaneous radio frequency voice communication between the portable communication device and other of the portable communication devices by: forming a group by pairing the portable communication device with another one of the portable communication devices by a direct link between the portable communication device and the other portable communication device, wherein the pairing comprises broadcasting, from the portable communication device, an invitation message, and in response to receiving an invitation response message from the other portable communication device, sending from the portable communication device a join acknowledge message acknowledging to the other portable communication device that the portable communication device and the other portable communication device have joined the group; transmitting audio data corresponding to speech of a user of the portable communication device directly via a wireless medium to each portable communication devices in the group; receiving directly, via the wireless medium, audio data corresponding to speech from each of the portable communication devices in the group, and transmitting the received audio data to the user of the portable communication device so as to provide to the user combined and simultaneous speech of the users of the other portable communication devices in the group; wherein the audio data transmitted and received between the portable communication device and the other portable communication devices in the group are transmitted and received over the wireless medium only and are transmitted and received directly between the portable communication device and the portable communication devices; wherein the one or more digital processors and the at least one memory collectively are further configured to: determine the locations of the other portable communication devices in the group; control which other portable communication devices in the group receive and render the speech of the user based on the volume of the speech and the proximity of each of the other portable communication devices in the group to the portable communication device. forming a group by pairing the portable communication device with another one of the portable communication devices by a direct link between the portable communication device and the other portable communication device, wherein the pairing comprises broadcasting, from the portable communication device, an invitation message, and in response to receiving an invitation response message from the other portable communication device, sending from the portable communication device a join acknowledge message acknowledging to the other portable communication device that the portable communication device and the other portable communication device have joined the group; transmitting audio data corresponding to speech of a user of the portable communication device directly via a wireless medium to each portable communication devices in the group; receiving directly, via the wireless medium, audio data corresponding to speech from each of the portable communication devices in the group, and transmitting the received audio data to the user of the portable communication device so as to provide to the user combined and simultaneous speech of the users of the other portable communication devices in the group; wherein the audio data transmitted and received between the portable communication device and the other portable communication devices in the group are transmitted and received over the wireless medium only and are transmitted and received directly between the portable communication device and the portable communication devices; wherein the one or more digital processors and the at least one memory collectively are further configured to: determine the locations of the other portable communication devices in the group; control which other portable communication devices in the group receive and render the speech of the user based on the volume of the speech and the proximity of each of the other portable communication devices in the group to the portable communication device. determine the locations of the other portable communication devices in the group; control which other portable communication devices in the group receive and render the speech of the user based on the volume of the speech and the proximity of each of the other portable communication devices in the group to the portable communication device.