What are my lap times? Is my posture OK? What is my position? What is the competition doing? These and many other questions come to mind when an athlete is pushing to deliver his or her best possible performance in a tough contest. Whenever a coach needs to instruct or inform his athletes, our communication devices provide you with an ideal solution. With their tiny dimensions, optimized shape and light-weight construction, they are the perfect aids for competition training or for maximizing performance in "the thick of the battle" (if permitted).