Effect pedals for guitars; volume control pedals; audio amplifiers; audio players; audio digitizers; audio recordings; audio recording devices; audio compressors; audio mixers; audio adapters; audio interfaces; integrated audio amplifiers; audio receivers; audio apparatus; digital audio players; electric and electronic effect apparatus for musical instruments; electric and electronic sound effect devices for musical instruments; electric and electronic equipment for musical effects; sound mixers; amplifiers for guitars; pre-amplifiers; sound recording apparatus; effect processors for guitars; electronic pedals for use with sound amplifiers; audio effect apparatus; sound processors; digital sound processors; sound generation devices; electric and electronic components; software for composing music; software for composing music; music software; headphones for music; analog-to-digital signal converters; computer hardware for processing audio and video signals; electronic power supplies; electric power supplies
Electrical and Scientific Apparatus