The BT Portable Mini Printer is a compact and convenient Bluetooth printer that supports A4 paper size with a resolution of 300x600 DPI. This printer is designed for printing color documents with a grayscale depth of 8 bit and 24-bit color depth. With a portable design, it is easy to carry around and use on-the-go. The printer also features a CMOS image sensor for scanning and has a manufacturer warranty of 1 year. Perfect for those who need a quick and efficient printing solution, the BT Portable Mini Printer is a reliable choice for various printing needs.