Advertisement via mobile phone networks; Advertising and promotional services; Arranging and conducting of fairs and exhibitions for business and advertising purposes; Consulting services in the field of search engine optimization for sales promotion; Development and production of the advertising content of banners and signs for advertising, promotional, or marketing purposes; Post-production editing of advertising or commercials; Production of teleshopping programmes; Providing sound and music listening equipment in retail stores for customers to preview compact discs, tapes, DVDs, DVRs, and other media prior to purchase