1. Battery model: button battery CR2032 2. Flexible LCD has no light source, protecting children’s eye health 3. Anti-erasure lock to prevent accidental deletion and retain masterpieces 4. The battery has ultra-long standby time, low power consumption, and long battery life. 5. The rounded corner design does not hurt your hands and is comfortable to hold. 6. Integrated storage is convenient and simple 7. Size: 346mmx240mmx8.5mm 8. Weight: 303 grams