[ 3D spectacles; Cabinets for loudspeakers; Camcorders; Chargers for electric batteries; Communication hubs; Communication software for providing access to the Internet; Communication software to access data stored on an oximeter and transfer data to another device; Communications headsets for use with communication radios, intercom systems, or other communications network transceivers; Communications servers; ]Computer keyboards; [ Computer memories; Computer memory hardware; Electric navigational instruments; Electronic navigational and positioning apparatus and instruments; Global positioning system (GPS); GPS navigation device; ]Headphones[ ; Monitoring devices for the aquaculture industry used to monitor dissolved oxygen and temperature; Mounting devices for cameras and monitors; Mounting devices for monitors; Portable media players; Protective carrying cases specially adapted for global positioning system (GPS) apparatus; Satellite navigational system, namely, a global positioning system (GPS); Slide projectors; Smartphones; Tablet computer ]