Wireless microphones with integrated speakers; Audio-receivers and video-receivers; Wireless headphones; Bone conduction earphones; Music headphones; Wearable technological devices being virtual reality headsets; Soundbar speakers; Smartwatch straps; Downloadable mobile applications for retrieving and displaying health information; Alarm central units; Alarm sensors; Wireless controllers to monitor and control the functioning of other electronic devices; Water filter controllers; Microcontrol...