Computer-controlled apparatus for testing and measuring radio frequency signals, concentrations of gas and liquids, audio signals; Ear buds; Earphone accessories, namely, earphone cushions, earphone pads, earphone cases, and earphone extension cords; Electronic components in the nature of capacitors, connectors, filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers, transistors; Electronic plant moisture sensor; Fire alarm and emergency evacuation devices, namely, fire alarm control panels, smoke detectors, heat detectors, alarm pull stations, audible and visible notification appliances, strobes, sirens, bells, horns, and speakers; Kitchen timers; LED lighting controls for energy management, computer environment illumination; Loudspeakers, headphones, microphones and CD players; Multi-function electronic device for use in children's rooms comprising a sound producing function, temperature gauge and also including a clock and nightlight; Protective sports helmet accessories that attach to the helmets, namely, mouth guards, ear pads, throat protectors, chin straps, face masks, jaw pads and eye shields; Public address (PA) and sound system accessories, namely, microphone stands, speaker stands, microphone cables, speaker cables, speaker boxes and sound mixers; Sunglasses incorporating wireless speakers and microphones; Wireless indoor and outdoor speakers; Wireless microphones with integrated speakers