Notebook Calculator Portable 10-Digit Display LCD Scientific Calculator for School Office Meetings and Family Gatherings Characteristic: 1. Health and Environmental Protection: Blue matte screen LCD, protecting your eyes. It can be written on it repeatedly, reducing paper consumption, it is environmentally friendly, free of dust and ink. Press the cleaning button to remove notes from the LCD display and protect your privacy. 2. Improve learning and work efficiency: The 6-inch calculator and erasable LCD notebook are designed in one piece, with a handwriting pen attached on one side. You can take notes during calculations, improving the efficiency of learning and working. 3. Lightweight and portable: this is a pocket-sized minicalculator with erasable writing pad and foldable design, weighing about 165 kilograms. It is very compact and can be carried in your pocket. It can be quickly removed and used immediately if needed. 4. Quiet Design: Our basic calculator keyboard is made of premium silicone material, soft to the touch and comfortable, quiet and noise-free touch. By using this calculator, you will not disturb others or influence your own thinking when calculating data. 5. Durability: The computer has been carefully crafted with silicone buttons that cannot be easily detached and that are resistant to wear and tear. After use, the computer can be closed like a book to avoid damaging the keyboard. Specification: Item Type:Calculator with Notebook Product material: ABS LCD Battery: CR2025 button battery (built-in) Capacity: 170 mAh Product Size: 150 x 90 x 15 mm / 5,91 x 3,54 x 0,59 inch Notebook Size: 6 inches Number of digits: 10 2 bits List of packages: 1 x Calculator with Notebook 1 x Manual