Item Type: Scientific Calculator <br>Product Material: ABS+LCD <br>Battery: Button battery CR2032 (built-in) Capacity: 150 mah <br>Number of Digits: 12 <br>Product Size: Approx. 16 x 9.3 x 1 (cm) / 6.3 x 3.7 x 0.4in <br>Notepad Size: 3.5 inches1、Calculators with Notepad: This calculator, combined with an LCD writing board, solves this problem! You can take notes during calculations, calls, and meetings to improve learning and work efficiency. <br>2、Mute Keys: The compact calculator keys are made of durable ABS, with comfortable hand feeling, and sound quiet when pressed, which is not easy to disturb others. <br>3、Memo Lock Function: The "Lock" key function saves your important notes and prevents accidental deletion. If you are looking for a great gift for a friend or family member, this cute calculator must be the best choice. <br>4、Health and Environmental Protection: LCD writing pad no blue light design, protect the eyes, can be repeated more than 50,000 times, no ink and dust. Reduce paper consumption, environmental protection. <br>5、Portable and Light: The small calculator weighs just 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. 6、Applicable Scenario: It is a small portable universal desktop calculator for home, school, office or store that can do general math and note taking just like us, has a variety of financial functions, and is ideal for adults and students.1 x Scientific&nbsp;Calculator&nbsp;&nbsp;&nbsp;<br>1 x Instructions