Smartphones; Baby monitors; Charging appliances for rechargeable equipment; Data cables; Dog whistles; Electric fences; Electric navigational instruments; Electrified fences; Electronic collars to train animals; Global positioning system (GPS) apparatus; GPS data logger for recording trips and classifying them into different accounts; GPS navigation device; GPS tracking device to be worn on the wrist of an athlete during endurance events; GPS tracking devices; Satellite-aided navigation syste...