The Polono 4"x6" Direct Thermal Label Printer is a versatile and efficient printing solution. With a maximum resolution of 203 x 203 DPI, this label printer can produce high-quality black and white prints at a fast speed of 20 ppm. It features wireless, Bluetooth, and USB 3.0 connectivity options for easy connection to various devices. The portable design and copier feature make it convenient for on-the-go use. Backed by a 6-month warranty, this label printer is reliable and ready to meet your printing needs with support for 4x6 paper size and thermal technology.