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Repeaters; Jump leads; Amplifying tubes; Electronic amplifiers; Digital amplifiers; Electrical amplifiers; Electroacoustic amplifiers; Amplifiers for bass guitars; Power transformers for amplification; Amplifiers for vehicles; Electrical amplifiers for sound signals; Loudspeakers with built in amplifiers; Sound mixers with integrated amplifiers; Electrical amplifiers for use with musical instruments; Audio dynamic characteristic modifiers; Control units for amplifiers for use in vehicles; Loudspeakers; Cabinets for loudspeakers; Loudspeaker cables; Cases for loudspeakers; Loudspeaker systems; Speaker switches; Loudspeaker units; Speaker mounting brackets; Loudspeaker drive units; Speaker docks; Speakers [audio equipment]; Wireless speakers; Portable speakers; Smart speakers; Wireless audio speakers; Loudspeaker stands [adapted for]; Portable speaker docks; Racks for loudspeakers; Speakers for computers; Speakers for record players; Audio speakers for automobiles; Horns for loudspeakers; Signal processors for audio speakers; Pairable wireless speakers; Speakers for video conferencing; Mobile phone speakers; Audio speakers for vehicles; Speakers for portable media players; Personal speakers; Sound filters made of cloth, for radio apparatus; Electronic audio signal processors for compensating sound distortion in speakers; Desk or car mounted units incorporating a loudspeaker to allow a telephone handset to be used hands-free; Sound reproduction apparatus; Portable sound reproducing apparatus; Acoustic membranes used in sound recording or reproducing apparatus; MPEG audio players; High fidelity audio apparatus; High fidelity apparatus