Portable & Lightweight: The small calculator weighs only 4 ounces and its compact size is perfect for your bag or pocket. You can take it anywhere you need it. Now, let's do the math using this portable calculator. Calculators with Notepad: This calculator, combined with an LCD writing chart, solves this problem! You can take notes during calculations, calls, and meetings to improve learning and work efficiency. Mute Keys: The calculator's compact keys are made of durable ABS, with a comfortable hand feel and quiet sound when pressed, which is not easy to disturb others. Health & Environmental Protection: LCD notepad without blue light, protects eyes, can be repeated more than 50,000 times, without ink or dust. Reduce paper consumption, protect the environment. Memo Lock function: The "Lock" key function saves your important notes and prevents accidental deletion. If you're looking for a great gift for a friend or family member, this cute calculator has to be the best choice. Specifications :Item Type: Scientific Calculator Product Material: ABS+LCD Battery: CR2032 Coin Cell Battery (Built-in) Capacity: 150 mAh Number of digits: 12 Product Size: Approx. 16 x 9.3 x 1 (cm) / 6.3 x 3.7 x 0.4 inches Notepad Size: 3.5 inches How to use:Simply remove the product > packing list: 1 x Scientific Calculator 1 x Instructions