Feature: 1. Student Best Helper: Pocket sized wrong question printer allows students to conveniently print and analyze their wrong questions, improving learning efficiency. 2. Multi Functionality: Printer not only allows photo based question search and analysis but also offers features like teacher explanations, knowledge dictionary, and graphic editing to meet various learning needs. 3. Imported Print Head: With a mature technology and reliable quality imported original print head, pocket wrong question printer offers a longer lifespan and better printing quality. 4. Instant Analysis: Simply take a photo with the accompanying app and the pocket wrong question printer will instantly provide accurate question analysis. It supports a vast database of professional questions. 5. Image Scanning: Utilizing OCR text recognition technology, printer quickly convert captured images into editable text content, making it convenient for students to organize and edit study materials. It is also compatible with Word documents, making office work more efficient. Specification: Item Type: Wrong Question Printer Material: ABS Battery Type: 1000mAh lithium battery (built in). Package List: 1 x Printer5 x Printing Papers5 x Self Adhesive Stickers3 x Colored Papers1 x Instruction1 x Charging Cable