The operating app has built-in Spanish, so you don't need to worry about it being difficult to use. Ink-free printing: long battery life, no need to add ink, environmentally friendly and healthy, saving money and worry. Improve learning efficiency: print and paste incorrect questions for easy reference, save time on handwritten notes, aid learning, and improve learning efficiency. Incorrect questions are no longer complicated, and learning is organized. Versatile: Office notes, documents, work plans, to-do lists, daily calendars, meeting minutes, and recipe printing can be easily completed. Mini and portable: The printer housing design is compact, exquisite, and powerful. Photo search questions: You can take photos to search for questions in the app, get quick analytical answers, rich knowledge domains, a huge question bank, and great Christmas gifts. This mini pocket printer easily and quickly connects via Bluetooth wireless compatibility, allowing you to effortlessly connect to your phone, smartphone, tablet, or laptop and print your favorite photos or important documents in seconds. The printer uses a USB charging design and supports charging with a variety of mobile power sources. Direct thermal technology: No ink, toner, or ribbons required, lower cost compared to inkjet printers. The small wireless printer is suitable for printing black and white photos, notes, and records. Record your life, work, and studies anytime, anywhere, print quickly, study effectively, and share your special moments at any time.