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• Product Description: 【Solar Energy Calculators with Notepad】 Calculators and notepad are designed in one, you could take notes whereas calculating, convalescing be taught and work efficiency The engineering calculator helps as much as 12 electronic calculations, the numbers are clean and readable, compatible for progressed and rookies 【Repeatable writing】 No blue light LCD screen protects your eyes Equipped with an ergonomic magnetic stylus at the back, allowing you to write/draw brilliant and clear lines After use, press the erase button as soon as to effectively reuse, cut paper consumption, and accomplish the target of environmental protection 【Silent design】 Solar calculator uses advantageous silicone keys, that are quiet and soft, without contact sound, and won't intrude with others when used Built-in 2 button batteries, 1PCS LR1120 calculator battery, 1PCS CR1220 LCD writing board battery, no need to recharge, it may be used for roughly one year (If the battery is dead, you would replace the battery by way of yourself) 【Easy and portable】 Solar calculator has a foldable design and weighs solely 0 pounds, making it easy to install a bag, pocket or purse It is very appropriate for paintings business, engineering calculation, accounting calculation, student physics calculation, domestic use, etc ●It is acceptable to be used in domestic computing, colleges and workplaces

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