FeaturesTwo functions in one: this is a new innovative calculator, a calculator with a writing board, which is convenient for recording.LCD writing: Inkless Drawing/Memo Pads or Paperless Noting/Planning Boards. It can better serve your office and study.RECHARGEABLE: This is a major innovation. Compared with traditional calculator, our product applies Type-C cable to power itself instead of one-time button battery. It only takes 1.5 hours to be fully charged. Great choice for eco-friendly lifestyle.LARGE DISPLAY: 12 Digits, better vision, upright LCD display. Please note that only the folding calculator has the charging function.GREAT FOR HOME AND OFFICE: Performs common math as well as various financial functions, Perfect for both adults and students.After-sales Service: Our Products is with a warranty of 12months , If there is any problem with the drawing board, please contact us at any time,We will reply within 12 hours. ADD TO CART now and embrace a wonderful day.Package list:1 * Calculator writing pad1 * Writing Stylus1 * Color Box1 * Manual