Scientific Calculators For High School, 10 Digits Digital Math Calculator For Product Details 1 x calculator notepad, 1 x detailed operating instructions. It can be replaced free of charge within 180 days. If you have any questions, please contact us immediately, we will provide you with 24 hours after-sales support. Calculator and notepad are designed together, you can write while calculating, improve learning and work efficiency, simple operation, suitable for beginner students and science builders,Very good mini high school supplies. The blue matt LCD screen is used to protect the eyes. When you are not using a calculator, you can also put it on the table as a notepad. It can write repeatedly, reduce paper consumption, environmental protection, no dust and ink, press a clear button to erase LCD notes and protect personal privacy. This handwritten calculator is only 120g, light in weight and easy to carry. Product size: 160*78*12.8mm. You can put it in your bag, pocket, or even wallet. It is a perfect choice for office calculations, construction calculations, financial calculations, accounting calculations, student calculations, home calculations, etc. 10-digit LCD screen, 2 button batteries, can be replaced at any time without installing screws, you don't have to worry about running out of batteries. 1 x calculator notepad, 1 x detailed operating instructions. It can be replaced free of charge within 180 days. If you have any questions, please contact us immediately, we will provide you with 24 hours after-sales support. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.