Portable Mini Wrong Question Printer Student Photo Text Memo Printer 1. High-definition mini, inkless printing, Bluetooth connection, long-lasting battery life 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. Printing method: thermal inkless black and white printing 8. Printing parameters: 200DPI 9. Support languages: Chinese, English, French, Italian, Spanish, German, Greek, Russian 10. Printing format: 57X25mm 11. Charging interface: 5V Micro USB interface 12. Print media: thermal paper 13. Battery capacity: 1000mah 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: 170g printer, about 15g paper per roll