The Canon Selphy CP400 Compact Photo Printer is a portable digital photo printer that uses thermal technology to produce high-quality color prints at a maximum resolution of 300 x 300 DPI. With a compact size and a CMOS image sensor, this Canon Selphy model is perfect for printing A7 and A6 size paper with ease. It features USB 1.0/1.1 connectivity and one MB of memory, making it a convenient and efficient option for printing photos on the go.