Acoustic amplifiers; Amplifiers; Audio equaliser apparatus; Audio interfaces; Cabinets for loudspeakers; Earphones; Earphones and headphones; Headphones; Megaphones; Monopods used to take photographs by positioning a smartphone or camera beyond the normal range of the arm; Sound transmitting apparatus; Virtual reality headsets

Amplifiers; Audio interfaces; Audio equalizer apparatus; Cabinets for loudspeakers; Earphones; Earphones and headphones; Headphones; Megaphones; Sound transmitting apparatus; Virtual reality headsets; Acoustic amplifiers; Monopods used to take photographs by positioning a smartphone or camera beyond the normal range of the arm