Cases for smartphones; Cordless telephones; Global positioning system (GPS) apparatus; Mobile phones; Optical communications systems comprised of optical and electronic hardware and computer software for the transmission of data between two points; Protective films adapted for smartphones; Smartphones; Switches, electric; Walkie-talkies; Wearable activity trackers; Wireless telephones; Carrying cases for cell phones; Devices for wireless radio transmission; Electric navigational instruments; ...