Feature: 1. [Portable Bluetooth Thermal Printer] Print documents wirelessly on the go with this compact thermal printer. Enjoy the convenience of portable printing. 2. [Fast and Easy Printing] With a 203dpi resolution, this printer ensures crisp and clear prints. Simply connect via USB or Bluetooth to print from your smartphone, tablet, or computer. 3. [Versatile Paper Sizes] Print on various paper sizes including US Letter, A4, A5, and more. This printer supports paper widths from 57mm to 216mm, making it suitable for a range of printing needs. 4. [Thermal Inkless Printing] This printer utilizes thermal inkless printing technology, resulting in black and white prints that are long lasting and smudge resistant, more eco friendly. 5. [Rechargeable Battery Powered] The printer is powered by a rechargeable lithium battery, allowing you to print on the go without the need for a power outlet. Stay productive wherever you are. Specification: Item Type: Bluetooth Thermal Printer Material: ABS Battery: 3.7V Lithium Battery x 1 (Included) Communication Interface: USB BT Resolution: 203dpi Supported Paper Width: 57-216mm Printing Method: Thermal Inkless Printing Imaging Method: Black and White Print Specifications: US Letter, A4, A5, 2, 3, 4in (Width: 216 210 210 107 77 57 mm) Thermal Paper. Package List: 1 x Bluetooth Thermal Printer1 Roll x Printing Paper (Built in Printer)1 x USB Cable1 x User Manual