Convenient Pocket Mini Printer Student Wrong Question Thermal Bluetooth Mobile Phone Photo Data Note Printer 1. Mini portable, Bluetooth connection, 2. Long service life and good printing quality 3. Instant shooting, instant search, instant printing 4. Print wrong notes to save time 5. Print photos as you wish to record the growth of children 6. Office notes, compatible with Word documents, work plans, and memo lists can all be done easily 7. No ink printing, long-lasting battery life 8. Printing parameters: 200DPI 9. Printing method: thermal inkless black and white printing 10. Printing format: 57 x 25mm 11. Charging interface: 5V Micro USB interface 12. Print media: thermal paper 13. Battery capacity: 1000mah 7.4V lithium battery 2A 14. Purpose: wrong question printer, picture, text, barcode, etc. printing 15. Connection method: Bluetooth wireless inkless black and white printing 16. Size: 80x80x35mm 17. Weight: 160g Packing list: -. Printer x 1 -. Printing paper x 1 -. Manual x 1 -. Charging cable x 1