1. Note: Shipped with built-in battery. 2. Features: 1. Fast printing: The printing speed of the portable receipt printer can reach 90mm/s, and the printing is efficient and clear. 2. Bluetooth 4.0: The portable printer supports Bluetooth 4.0 function, which is convenient for remote printing and supports Android, OS X and Windows systems. 3. Energy saving: The receipt thermal printer has the functions of automatic sleep and automatic wake-up, energy saving. 4. Widely used: The thermal printer is suitable for printing taxi tickets, management fee receipts, restaurant order information, etc. 5. Thermal printing: The Bluetooth receipt printer uses thermal paper for printing, which is smaller and quieter, and supports smartphone control, it is easier to operate. 3. Specification: Item Type: Portable Receipt Printer; Material: ABS; Bluetooth Version: 4.0; Interface: Micro USB; Printing Method: Thermal Printing; Printing Speed: 90 mm/s; Resolution: 203 dpi (8 dots/mm); Printing Width: Approx. 48 mm / 1.9 in (384 dots); Paper Width: Approx. 58 ± 1 mm / 2.3 ± 0.04 in; Life Cycle: 100 km; Battery Type: 2,000 mAh Li-ion Battery (Built-in) 4. Package List: 1 x Portable Receipt Printer, 1 x User Manual, 1 x Rechargeable Paper, 1 x Printer Manual