The Epson WorkForce WF-100 Wireless Mobile Inkjet Printer is a portable and wireless printer that offers high-resolution color printing up to 5760 x 1440 DPI. It features a compact design and is ideal for on-the-go printing tasks. With a 1-year manufacturer warranty, this printer is reliable and efficient, perfect for small office or home use. The WF-100 also offers fast black print speeds of up to 3 ppm and has a memory capacity of 64 MB, ensuring smooth and quick printing performance. Epson's reputation for quality printing technology is reflected in this versatile mobile printer. It will not work until you charge it, or have it plugged in.