equalizers [audio apparatus]; speakers; speakers, portable; audio mixers; audio speaker enclosures; audio speaker cases; sound mixers with integrated amplifiers; audio devices; audio equipment; smart speakers; speaker amplifiers; loudspeakers; audio and video receivers; loudspeaker units; hi-fi audio apparatus; portable audio equipment; portable speakers; wireless audio speakers; wireless speakers; audio speakers; speakers for portable media players; electronic sound pickups for guitars and basses; audio amplifiers; amplifiers; loudspeakers with built-in amplifiers; amplifiers for bass guitars; amplifiers for musical instruments; sound amplifiers; speaker systems consisting of loudspeakers and cabinets for use with loudspeakers; loudspeaker systems; sound recording and reproducing apparatus

loudspeakers; electronic sound pickups for guitars and basses; amplifiers for bass guitars; speakers; audio speakers; portable speakers; speakers for portable media players; wireless speakers