I am selling this item because I don't plan to use it. It is new and unused, but please understand that there may be initial scratches on the packaging. (I have two of the same item, so if you need two, please comment and I can list them as a set for ¥1,300!) Amazon reference price: ¥1,180 ▼The following is a quote from the official description.▼ Easy-to-use calculator A calculator with large buttons and a screen, easy to use for kids and seniors. Calculation functions: addition, subtraction, multiplication, division, constant calculation, percentage calculation, markup/discount calculation, square root calculation, etc. Power supply: solar cell + battery (LR1130) ■Double power system (2 power supply system) This unit has a solar cell and a button battery built-in. Normally, the solar cell is used, so you can use it with natural light, as well as the light from indoor lighting. When the light hitting the solar cell is blocked during use, or in a place with weak light, the built-in battery will automatically operate. ■Fast input function A function that accepts input even if you press the next key before your finger leaves the previously pressed key (key rollover). You can quickly and accurately input using all five fingers, preventing input errors. ■Angle display This model has an angled display for easy viewing. ■Auto power off function The unit will automatically turn off if left unattended for about 7 minutes.