Acoustic amplifiers; Anthropometric tape measures; Ear phones; Global positioning system; LED monitors; Photography darkroom lamps; Portable power chargers; Projector lamps; Satellite navigational system, namely, a global positioning system (GPS); Sensors for determining position, velocity, acceleration and temperature; Slide or photograph projection apparatus; Ultracapacitors for energy storage; Wireless electronic devices for locating and tracking personal objects, wallets, backpacks and luggage; Wireless speakers