1. Folding ultra-thin, dual-purpose battery, 12-digit display
2. Display panel: LCD flexible LCD screen + calculator
3. Font color: monochrome/thick handwriting
4. One-click, eye protection, environment-friendly, rewritable, one-click delete
5. One-key delete, just press the delete key gently, the screen will immediately return to its original state, no ink, no dust
6. Display digits: 12
7. Power supply: CR1220 button battery
8. Material: ABS
9. Packing list: calculator + stylus
10. Product size: 160x80x10mm
11. Product weight: 100g
12. Machine weight: 130g