1. Reflectivity: 25% - 30%
2. Writing pressure: 10-inch: about 200-300g, 12-inch: about 100-200g
3. Power supply: CR2025 button battery included
4. Use: office, drawing draft, parent-child communication, message, etc.
5. Material: ABS
6. Display area: 10 inch: about 14.55 x 21.36cm, 12 inch: about 23.44 x 17.14cm
7. Size: 10 inch: about 25.56 x 16.62 x 0.95cm, 12 inch: about 27.64 x 19.21 x 0.95cm
8. Weight: 10 inch: about 191.6g, 12 inch: about 245.4g

Features:
1. Anti-false erasing, one key to fix the lock screen
2. Contained button battery power supply, low energy consumption, long life time
3. LCD eye protection screen, no blue light, no backlight, no radiation
4. Wide range of use, versatile
5. One key to clear, convenient and quick
6. Frosted touch, beautiful and simple, thin and portable
7. Pressure-sensitive writing, high brightness fine handwriting