【2-in-1 Calculator】This scientific calculator is designed with a notepad, allowing you to take notes while calculating, improving study and work efficiency. A hidden pen that is not easy to lose, you can calculate and save at any time. The desktop calculator supports up to 10-digit calculations, data is clear and easy to read, suitable for advanced and beginners.

【Repeatable Hidden Pen Writing】The foldable desktop calculator is equipped with an ergonomic magnetic pen on the bottom of the flip-up slot, allowing you to write or draw clear and distinct lines. Simply press the erase button once after use, helping to reduce paper consumption and achieve the purpose of environmental protection.

【Sensitive Keys and Slide Lock Button】Use a premium silicone key, which is more sensitive and accurate. Comfortable to touch. A slide lock button is designed at the bottom of the calculator, when writing with the writing pad, use the lock button to prevent accidental erasure or unlocking.

【Durable and Smooth】The basic calculator is made of ABS, the tablet screen is LCD writing film, sturdy and durable, you can easily write while calculating. The tablet screen is a flexible LCD writing film panel, allowing for a smooth image without friction noise when writing.

【Portable and Foldable】The scientific calculator is small like a phone portable, compact and foldable design, you can use the calculator very conveniently and easy to carry. This foldable calculator can be carried in pockets, purses, school bags, desks, desktops. Suitable for work, engineering calculation, accounting calculation, student physics calculation, home use, etc.