Sxmrmnx Solar Scientific Calculator with LCD Notepad Functions Professional Portable Foldable for Students

Repeatable writing: No blue light LCD screen protects your eyes. Equipped with an ergonomic magnetic stylus on the back, allowing you to write/draw bright and clear lines. After use, the erase button once to effectively reuse, reduce paper consumption, and achieve the goal of environmental protection. Solar Energy Scientific calculators with Notepad:calculators and notepad are designed in one, you can take notes while calculating, improving study and work efficiency. The engineering calculator supports up to 10 digital calculations, the numbers are clear and readable, suitable for advanced and beginners. Silent design:scientific calculators uses high-quality silicone keys, which are quiet and soft, without touch sound, and not interfere with others when used. Built-in 2 button batteries, 1PCS LR1120 calculator battery, 1PCS CR1220 LCD writing board battery, no need to recharge, it can be used for about one year. (If the battery is dead, you can replace the battery by yourself) Easy and portable:pocket calculator has a foldable design and weighs only 0.26 pounds, making it easy to put in a bag, pocket or purse. It is very suitable for work business, engineering calculation, accounting calculation, student physics calculation, home use, etc.