Earphone; Headphones; cases for smartphones; protective films adapted for mobile phones; Computer peripheral devices; Interfaces for computers; data processing equipment, namely, couplers; Horns for loudspeakers; Sound recording apparatus; Sound transmitting apparatus; Audio- and video-receivers; electric monitoring apparatus for monitoring battery performance characteristics; Acoustic couplers; Camcorders; Materials for electricity mains, namely, electric wires and cables; electrical plugs, ...