Feature: 1. Compact Design: This thermal printer measures 267.7x46x84mm, is suitable for use during business trips and at school. Editing and printing on mobile phone, the APP provide a large number of templates 2. Versatile Printing: Print anything you need, including PDF files, test papers, webpages, contracts, photos, and images. Wireless printing of large amounts of paper, suitable for learning and office work 3. A4 Printing Size: Print on 210mm thermal paper with this inkless printer, suitable for printing documents, daily planners, memos, and more. Comes with a roll of thermal paper, installed in the printer 4. Built in Battery: Features a built in 2500mAh rechargeable battery, capable of printing 70 sheets of A4 paper when fully charged. Each roll of paper can print 45 sheets of A4 paper, no need for frequent replacement 5. Wireless Printing: Connect your mobile devices to the printer via BT function for convenient wireless printing. After downloading the mobile APP, you can easily edit files, images, posters, lists, and more Specification: Item Type: Thermal Printer Color: White Printer Size: Approx. 267.7 x 46 x 84mm / 10.5 x 1.8 x 3.3in Battery: 1 x 2500mAh Rechargeable Battery (Built in) Charging Time: About 3-4 hours Charging Interface: 5V 2A Resolution: 203dpi Printing Method: Thermal Printing Image Mode: Black and White BT: 4.0 Printing Paper: A4 Paper Roll Size: 210 x 30 x 12mm / 8.3 x 1.2 x 0.5in Paper Roll Length: Approx. 5.2m / 17.1ft. Package List: 1 x Thermal Printer 1 x Thermal Paper Roll (In the Machine) 1 x USB Cable 1 x User Manual