The CITIZEN PN60 Pocket Printer is the world's smallest printer, utilizing laser technology for high-quality black and white printing. With a compact design and 64 KB memory, this portable printer offers a 2 ppm black print speed and supports various paper sizes including letter, legal, and A4 (210 x 297 mm). Ideal for use with parallel connectivity, this Citizen printer is a versatile and reliable option for printing on-the-go in the United States.