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; Monitoring apparatus, electric, namely, computer monitors; Acoustic couplers; Camcorders; Materials for electricity mains, namely, electric wires and electric cables; Electrical Plugs, electrical soc...