9 Devices for recording, transmission, reproduction of sound and images, namely, smartphones, tablet computers, mp3 players, mp4 players, digital audio players (DAPs), portable music players (PMPs), digital audio and music players, laptops; audio and video recordings featuring music, artistic performances and information about prices, bar codes, stands and brochures, all concerning market research, store checks, mystery shopping, fairs, exhibitions, traffic signage inspection and street billboards check; audio and video recordings that can be downloaded to mobile phones, MP3 players and personal digital assistants featuring information concerning market research, store checks, mystery shopping, music, artistic performances, fairs, exhibitions, traffic signage inspection and street billboards check; downloadable publications on magnetic and optical devices and downloadable electronic publications, namely, newsletters, journals, manuals and reports concerning market research, store checks, mystery shopping, music, artistic performances, fairs, exhibitions, traffic signage inspection and street billboards check; computer application software for mobile phones and software for accessing, downloading and displaying recorded videos, games, cartoons, short films, films on mobile phones; prerecorded CDs and magnetic data carriers featuring electronic codes for accessing networks and communication platforms; electronic devices for the identification of users and for the authorization to access to platforms for mobile e-commerce, namely, electronic key cards, magnetically encoded key cards, wireless cards and microchip cards and optical discs featuring personal identification information; electronically encoded identity cards, and magnetically encoded loyalty cards