As a gift - popular dopamine color designThis popular dopamine color design gives you a bubble-like feeling, giving a marshmallow feeling. So, this candy-colored calculator is very cute and can get the job done, it is the best gift for colleagues, children, students and classmates. Daily calculations that can replace mobile phonesAddition, subtraction, multiplication, division, backspace, total, CE, %, M+/M-/MRC, on/AC buttons and automatic shutdown. For most people's needs, which basically involve fast percentage calculations without waking up the phone, on a standing desk with little storage space, so it is placed outside, this is enough. Retro keyboardThis desktop calculator uses retro round big keys. We specially designed the retro-style big round keys, just like a retro printer, and the key sounds of a retro printer will be emitted when the keys are pressed. This will leave you with interesting sounds to kill boring time. 12-digit large displayBasic office calculator with a 12-digit large display and a 15-degree angle. The huge LCD screen that clearly displays large numbers makes it easy to read from a distance, and reading calculations is effortless. Dual Power DesignThis calculator can use both batteries and solar power. The calculator will automatically shut down after about 6 minutes of inactivity.batteries not include