This is a Bluetooth tool program produced by Advantech. It can be used with electronic paper (models: EPD-250, EPD-252, EPD-353) produced by Advantech to transfer and display basic images through the Bluetooth transmission of the mobile phone. Users can use the built-in templates to create pictures related to their applications, such as business cards, price lists, meeting room door panels, business hours, memos, shelf labels, billboards, etc. In addition, users can also connect to DeviceOn/ePaper, the e-paper background management system produced by Advantech, and create templates on the web page through customized layout, and download the customized templates and data through the Internet to provide more information. Diversified and flexible applications. This tool program has built-in camera, photo album, and image processing dithering and color enhancement functions. You can quickly make business cards and product introductions by taking pictures, and the colors can also show the richness of photos. This tool program can connect up to four e-paper devices at the same time, speeding up the efficiency of drawing images. This utility program can also upgrade the firmware of the electronic paper device to provide additional customized services.