- Material: ABS 2. Purpose: graffiti, message, drawing, etc. 3. Interface: USB 4. Battery capacity: 170mAh 5. Specification: 9/11.5 inch 6. Size: 9-inch approximately 21x17.8x0.65 cm, 11.5-inch approximately 26.5x17.2x0.7 cm 7. Weight: about 210 grams for 9 inches, and about 195 grams for 11.5 inches Features: 1. High-brightness diaphragm, handwriting LCD screen, no radiation, no blue light, and no eye damage 2. One-click clear, click to clear, partial buttons are set as watch buttons 3. USB interface charging, convenient and fast 4. Lightweight and compact, easy to carry 5. The pressure-sensitive pen is comfortable to hold, and the drawing board has a storage card slot, which is convenient to carry and place, and is not easy to lose 6. ABS plastic material, wear-resistant and drop-resistant, durable