O2Nails Italia nail printers work with the O2Nails app, available for smartphones and tablets with iOS and Android operating systems. After downloading the app, connect to the printer via Wi-Fi, select the image you want to print from your gallery or from your device, and proceed to print by following the steps. The process is very simple; watch the demonstration video by clicking the following link: https://youtu.be/tjBov_Clz-c