Cases for smartphones; Computer peripheral devices; [ Couplings, electric; Data processing apparatus; ] Galvanic cells; Headphones; Loudspeakers; Protective films adapted for computer screens; Protective films adapted for smartphones; Self-timers; Sleeves for laptops; [ Smartglasses; ] Battery chargers for use with telephones; Cell phone battery chargers for use in vehicles; Electrical plugs and sockets; [ GPS tracking devices; ] Protective cases for smartphones; Protective sleeves for laptop...