- All-in-One Mobile Printer: The A40 mobile printer is perfect for printing PDFs, test papers, web pages, contracts, photos, and more. Its long standby time and user-friendly app provide various materials and typography options, making it an essential tool for both study and office tasks. - Versatile Printing Sizes: Equipped with two adjustable clips, the A40 thermal printer accommodates thermal paper widths of 210mm, 107mm, 77mm, and 56mm (A4, 4", 3", and 2"). It supports both roll and folding paper, allowing you to easily adapt to different printing needs. - Compact and Convenient: Measuring just 265x80x45mm (10.4x3.1x1.8 inches), the A40 is designed for portability. It features two built-in 2600mAh rechargeable batteries, enabling continuous printing for up to 3 hours after a full charge and a standby time of 90 days. Ideal for business trips, school use, or on-site printing of invoices and contracts directly from your phone or computer. - High Compatibility: The A40 supports Bluetooth connections with both iOS and Android devices. Simply press the power button for 2 seconds to turn on, download the app, and connect via Bluetooth. For printing from a computer, download the necessary driver (note that macOS is not currently supported). - Practical Applications: Use the A40 printer to effortlessly print invoices and contracts during meetings, generate lists and exam documents on-the-go, or create high-quality photos for presentations. Its versatility and ease of use make it a reliable companion for professionals and students alike.