Amplifiers; Headphones; Cabinets for loudspeakers; Components for electrical mains in the nature of electric wires, connectors, circuit breakers, and cables.; Data processing equipment, namely, couplers; Horns for loudspeakers; Sound transmitting apparatus; Transmitters of electronic signals; Transparency projection apparatus; Wire connectors

Amplifiers; Cabinets for loudspeakers; Components for electrical mains in the nature of electric wires, connectors, circuit breakers, and cables; Data processing equipment, namely, couplers; Headphones; Horns for loudspeakers; Sound transmitting apparatus; Transmitters of electronic signals; Wire connectors; Transparency projection apparatus