【DUAL POWER CALCULATOR】Compared with traditional battery calculators, our calculator is charged with a Type-C data cable, no need to replace batteries frequently. It can be used for about 240 days to 300 days (depending on each person's usage) with a 150-minute charge. It also has a solar panel, so you don't have to worry about running out of power when using it on the go. It can also support continuous use for a period of time when the battery runs out. 【CALCULATOR WITH NOTEPAD FUNCTION】: Have you ever encountered the trouble of not being able to find a pen and paper to record the results of the calculation process? This financial calculator combined with an LCD writing tablet solves that problem! Great for minimalism and paperless. You can take notes during calculations, calls and meetings, thus improving your study and work efficiency. Say goodbye to tedious steps. Own it now! 【MEMO LOCK FUNCTION AND KEY MUTE】: The compact calculator keys are made of plastic, which feels comfortable in the hand, and the sound is quiet when pressed, which is not easy to disturb others. The "lock" key function can save your important notes and prevent accidental deletion. and effective for financial, family, accountant assistance to perform 4 function mortgage loan calculation and tax conversion. 【APPLICATION SCENARIO】: Made of durable ABS material. Yellow and white, blue and white, cyan and white, black, various styles. A small portable general-purpose desktop calculator for home, school, office or shop, do general math and note-taking like we do, with multiple financial functions, perfect for adults and students. Gift box design, good gift FOLDABLE STORAGE DESIGN: Once folded, it can be easily tucked into your pocket or bag. This portable design is incredibly convenient and thoughtful. Product Name: CalculatorMaterial: PlasticSize: 15.2 * 9cmWeight: 0.18kgColor: Black, Blue Blue, Blue White, YellowProducts include: 1 * Resting hammock