The portable mini printer BT instant printing is a compact and mobile printer that supports scanning sizes up to A4 (210 x 297 mm) and output in black & white. It features a CMOS image sensor, 64 MB of memory, and uses thermal technology for printing. The printer connects via Bluetooth and is equipped with a one-year manufacturer warranty, making it a convenient and reliable choice for on-the-go printing needs. Its portable design allows for easy use in various settings, making it ideal for users looking for a small and efficient printer for their mobile devices.