Headphones; video game apparatus for personal use, namely, video game cartridges, batteries; electric conductors, wires, and cables; electrical communicating apparatus and equipment, namely, portable two-way radios; infrared communication system and its individual components, namely, a miniature FM transmitter, operating in the infrared band, which transmits signals conveying signage information to receivers carried by individuals, a miniature FM receiver which receives the signals from the t...