Cases for smartphones; Data processing equipment, namely, couplers; Desk or car mounted units incorporating a loudspeaker to allow a telephone handset to be used hands-free; Devices for hands-free use of mobile phones; Dust proof plugs for earphone jacks; Ear plugs for divers; Headphones; Loudspeakers; Protective films adapted for smartphones; Ear plugs for divers; GPS tracking devices; USB cables