Feature: 1. A light calculator with a writing tablet and a foldable design. You can put it in your pocket and use it when necessary 2. Calculator and handwriting tablet are integrated design, you can take notes and draw while calculating, which can improve the efficiency of study and work 3. The calculator supports 12‑digit calculations, and the handwriting tablet can be used as a cover to protect the calculator from dust 4. Easy to carry, you can quickly take notes when calling, meeting, and you can erase the notes by pressing the transparent button to protect private information 5. The handwriting tablet uses a blue‑light‑free LCD screen to protect the eyes and can write repeatedly Specification: Item Type: Office Calculators Material: LCD+ABS Size: Approx. 15.1 x 9 x 1.3cm / 5.9 x 3.5 x 0.5in (manual measurement, there is a small error) Colour: Black Battery Type: Lithium Battery (shipped with built-in battery) Battery Model: 402020 Battery Capacity: 120mAh Product Features: 6in Handwriting Tablet, Silent, Support 12-digit Calculation. Package List: 1 x Office Calculators 1 x USB Cable1 x User Manual1 x Pen Note: Manual Measurement, There is a Small ErrorShipped with Built‑in Battery