Earphones; headphones; headsets for use with computers and cellular and mobile phones; audio cables; chargers, charging cables and power adapters for use with headphones and earphones; protective transport cases for headphones and earphones; downloadable computer software for installing, configuring, operating, and controlling wearable devices, earphones and headphones; downloadable computer programs for the connection and communication to and with other electronic devices, for the use in databases, for data storage, for data transfer and analysis, for the transfer, reading, and recording and analysis of podometric data, of geolocation data and data from inertial control units, for the transfer, playback, and recording of audio and video multimedia contents, for the spatialization of 3D and binaural sounds for the transfer, listening, and interaction with immersive 3D audio contents; downloadable computer applications for smartphones, tablets, ebooks, and netbooks for the connection and communication to and with other electronic devices for the use of databases, for data storage, for data transfer and analysis, for the transfer, reading , recording, and analysis of podometric data, of geolocation data and data from inertial control units, for the transfer - playback and recording of audio and video multimedia contents for the spatialization of 3D and binaural sounds for the transfer, listening, and interaction with immersive 3D audio contents; downloadable computer applications for the connection and communication to and with other electronic devices, for the use of databases, for data storage, for data transfer and analysis, for the transfer, reading, recording, and analysis of podometric data, of geolocation data and data from inertial control units, for the transfer - playback and recording of audio and video multimedia contents, for the spatialization of 3D and binaural sounds for the transfer, listening, and interaction with immersive 3D audio contents; downloadable computer applications for smartphones, tablets, ebooks and netbooks for the connection and communication to and with other electronic devices, for the use of databases, for data storage, for data transfer and analysis, for the transfer, reading, recording and analysis of podometric data, of geolocation data and data from inertial control units, for the transfer, playback. and recording of audio and video multimedia for the spatialization of 3D and binaural sounds for the transfer, listening, and interaction with immersive 3D audio contents; downloadable IT applications for smartphones, tablets, electronic books (ebooks), and netbooks, namely software for the connection and communication to and with other electronic devices, for the use of databases, for data storage, for data transfer and analysis, for the transfer, reading, recording, and analysis of podometric data, of geolocation data and data from inertial control units for the transfer playback, and recording o audio and video multimedia contents, for the spatialization of 3D and binaural sounds for the transfer, listening, and interaction with immersive 3D audio contents; downloadable computer applications for smartphones, tablets, ebooks, and netbooks for the connection and communication to and with other electronic devices for the use of databases, for data storage, for data transfer and analysis, for the transfer, reading, recording, and analysis of podometric data, of geolocation data and data from inertial control units, for the transfer, playback, and recording of audio and video multimedia contents for the spatialization of 3D and binaural sounds for the transfer, listening, and interaction with immersive 3D audio contents; downloadable computer application software for enabling file sharing between different users