Aqua Tail is an electronic brochure stored in USB flash drive, designed to give customized publicity for exhibitors. Unlike paper brochures, which are high-cost and cannot be reused, it is pre-written with e-brochure that contains information about company and products, which will automatically play when it connects to a computer. It could provide many ways for presentation: video, music, dynamic product display and so on, even accessibility software for the needs of disabled users. It would automatically refresh and download when it is connected to the company’s network server, hence one Aqua Tail would give the users the latest information about company and products.