Radios; Satellite navigational system, namely, a global positioning system (GPS); Global positioning system (GPS) apparatus; Loudspeakers; Audio- and video-receivers; Sound transmitting apparatus; CD players; Compact disc players; DVD players; Portable media players; Electronic book readers; Wearable video display monitors; Head-up displays (HUDs) for vehicles, namely, transparent electronic displays for providing users with navigational and operational information; Wireless microphones with ...