【Calculator with Notepad】Equipped with 6.5 Inch writing tablet, you can take notes or graph while calculating by using the stylus pen in the bottom left side.【Lightweight & Portable】The pocket calculator, weight only 4 oz, can be folded as small size, you can put it in your pocket, briefcases or schoolbag to office, school.【More Sensitive Key】The button of NEWYES basic calculator is made of premium ABS plastic material, which is more sensitive than silicone button. After repeated press will not interfere with its sensitivity.【Rechargeable & Solar Power】Our desktop calculator can be powered by solar panel and Type-C charging cable. A single charge will last more than 3 months.【Locked and Unlocked Design】You can keep your notes through turning the button into the locked position. And if you want to erase the notes, please turn it into the unlocked position and click the delete button to erase them. Product Description More Sensitive Key Made of premium plastic, more sensitive and comfortable than other silicone key. Large and Clear Display 12 Digits display and appropriate brightness make the calculator more intuitive. Foldable Calculator Can be folded, easy to carry and store. Lightweight and portable. Lightweight & Portable Weight only 4 ozSize: 15cm x 9cmx 1cm / 5.9in x3.54in x 0.39inCan be folded and easy to storeYou can put it in your pocket, briefcases or schoolbagDustproof and not easy to damage