The Canon SELPHY CP510 Dye-Sub Photo Printer is a portable digital photo printer that can print 4 x 6 inch photos with vibrant colors and high resolution. It uses dye sublimation technology to produce high-quality images with a maximum resolution of 300 x 300 DPI. The printer has a compact design and a built-in USB connectivity for easy connection to various devices. It also has a built-in 8 MB memory, a fast black print speed of 4 ppm, and a 1-year manufacturer warranty, making it a reliable and convenient option for printing photos on the go.