Adapter plugs; Banana plugs; Connections for electric lines; Connectors for electronic circuits; Electric connections; Electric switches; Electrical amplifiers for use with musical instruments; Electrical plugs and sockets; Electrical power distribution blocks; Electrical terminal blocks; Electronic chips for the manufacture of integrated circuits; Equalizers being audio apparatus; Integrated circuit module; Loudspeakers; [ Megaphones; ] Memory cards; [ Microphones; ] Secure Digital (SD) Memo...