Scientific Calculator with Erasable Writing Board 240 Functions 2 Line LCD Display Foldable Financial Math Calculator School Supplies for Middle High School College Students Black Features: Scientific Calculator with Writing Tablet: Scientific calculator can write out your calculations directly on the tablet for easy organization and review - no more lost scraps of paper or misplaced equations! 240 Computing Functions: This scientific calculators has everything you need to solve complex equations and get the right answer every time. 2-Line Display: See all your calculations in crystal-clear detail with the large 6 inch LCD display screen in math calculator, easy-to-read display - perfect for students who need to double-check their work. Battery Powered: Scientific calculators is powered by CR2025 battery, so don't worry about the battery dying anymore. Make sure you're ready for every math class with this essential scientific calculator. Foldable & Portable: Take this scientific calculator with you wherever you go - it is only 152g, light in weight and perfect for middle, high school, and college students who need to numbers on the go! Specification: Product material: ABS Product size: 162 x 82.2 x 18.3mm / 6.37 x 3.23 x 0.72in Product weight: 152g / 5.36oz Battery: 3.0V 150mAh CR2025 Product color: Black, White, Sky Blue (Optional) Package size: 175 x 114 x 20mm / 6.88 x 4.48 x 0.78in Package weight: 160g / 5.64oz Packing List: 1 x Scientific Calculator 1 x Writing Pen 1 x Manual