Abstract: In one embodiment of the invention, a crew member (172) using a computing device (174) communicates over a wireless link (15) with a film system communication module (176) placed nearby a filming tank (178). The computing device (174) can be a smartphone, tablet or computer. A crew member (180) and/or talent (182) wearing a remote transceiver (184) in the tank communicates over a wireless link (58) through the film system communication module. Additional crew members (186) can also connect to the film system communication module (176) and communicate to any person with a transceiver (184).

Abstract: A system for monitoring and directing athletic or other physical activities is disclosed. In one embodiment of the invention, a headset worn by an athlete includes one or more sensors, a microprocessor, a non-volatile memory and a communication link. The athlete's headset receives and transmits signals to a coach while the athlete is performing an activity. In this embodiment, the present invention provides coordinated audio streams to the athlete during his/her activity and training.