Calculators; Earphones; Scales; Spectacles; Apparatus for transmission of communication; Armatures for use in electrical apparatus; Blank USB flash drives; Chargers for electric batteries; Electric batteries; Inverters for power supply; Locks, electric; Power-line transmission machines and apparatus; Power adapters; Power supplies; Protective covers for smartphones; Protective films adapted for smartphones; Renewable battery system to provide backup power; Satellite navigational system, namel...