Our wireless and inkless thermal printer is portable. A4 thermal paper or tattoo stencils can be printed. When printed with this tattoo machine, you can see even large black blocks and sharp lines. Not ideal for gradient patterns and colors. It can also be printed on letter or A4 paper, including thermal paper that has been folded or rolled. The printer has no ink; all you need is thermal paper; you don't have to worry about running out of ink. Plus, it's portable. The service life of the print head is about 170,000 pages of letters. Approximately 4 pages per minute are printed in monochrome (black and white only). Dimensions: 1.9 x 3.1 x 10.5 inches. Weight: 1.5 lbs