The NDYIN D20 Portable Thermal Sticker Printer Mini Printer is a compact and portable label printer that uses thermal technology to generate black and white labels. Made by NDYIN, the D20 model is designed for convenience and efficiency. With a paper size of 57mm, this mini printer is perfect for on-the-go printing tasks and is ideal for businesses or individuals in need of a portable printing solution. Made in China, this product is a reliable choice for those looking for a versatile and easy-to-use label printer.