Capsule microphones; Electric leads for microphones; Guitar microphones; Hand microphones with directional characteristic; Headphones for microphones; Microphone buttons; Microphone mixers; Microphone plugs; Microphones; Microphones for record players; Sound reproducing apparatus with microphone; Sound recorders; Audio speakers; Audio speakers for automobiles; Audio speakers for home; Car speaker components; Car speakers; Electric leads for speakers; Monitor speakers; Personal stereo speaker apparatus; Public address speaker systems; Speaker switches; Speakers (audio equipment); Speakers for compact disc players; Speakers for computers; Speakers for tape players; Aerial amplifiers; Amplifier tuners; Amplifiers; Amplifiers being audio apparatus; Amplifiers for use in cars for entertainment purposes; Audio amplifiers; Digital amplifiers; Distribution amplifiers; Electric amplifiers (current); Electric amplifiers (sound); Electric cords for musical amplifiers; Electric leads for amplifiers; Electrical amplifiers; Electrical amplifiers for sound signals; Electrical amplifiers for use with musical instruments; Electronic amplifiers; Guitar amplifiers; Headphone amplifiers; Power amplifiers for use in sound reproduction; Power output amplifiers; Sound amplifiers; Stereo amplifiers; Advertising boards (electric or luminous); Advertising display apparatus (electric or luminous); Advertising display signs (electric or luminous); Advertising signboards (electric); Electric advertising apparatus with alternative displays; Sound monitoring apparatus; Apparatus for use in testing electrical cables; Electrical cable; Electrical cable apparatus; Electrical cable connectors; Electrical cables for connecting computers; Electrical cables for lighting installations; Electrical cables in the form of ribbons; Electrical terminals connected to electrical cables; Female connectors for electrical cables; Insulated electrical cables