Calculators From Hion, 12-Digit Large Display Rechargeable Pocket Office, Black. Product Details ?Calculator with Notepad?:Have you ever been trouble that you had to remember the result of a number during a calculation,but couldn't find paper and pen to record it? This finance calculator is comebining with lcd writing board which can solve this problem perfectly.It is designed by a Japanese designer which pursuing minimalism and paperless eco-friendly.You can take notes while calculating,calling and meeting,which improving your study and work efficiency. ?Mute Design and Memo Locked Function?:The small calculator keys adopt high quality silicone which feel comfortable,waterproof,sensitive and mute,not interfere with other people,"locked"key function to save your important notes prevent deleting.The basic calculator is an ideal choice of leaving messages to kids and yourself,and perform 4-function mortgage calculator and tax conversions efficiently for finance,office,accountants,school and home. ?Lightweight and Portable??This mini calculator weighs 4 oz and have a flip cover that can be protecting the keyboard.You can put it in your pocket and bag.It is portable that you can carry it to anywhere and can be removed and used immediately when needed ?Healthy and Eco-friendly? : The LCD screen of is designed by no blue light that protects your eyes,The writing pad with One key clear function supports reusable writing 50,000 times and calculator paper free,no ink and no dust.Reducing paper consumption and being environmentally friendly. ?Great Battery Life and 3-Year Free Refund or Replacement?: Compared with traditional adding machine calculator,our calculator for desk applies Type-C cable to power itself instead of one-time button battery.Charge it 90 min single times,Battery Life last for 3 months,Great choice for eco-friendly lifestyle.Your satisfaction is our goal,we pay great attention to customers'benefit.We provides 3-years free refund or replacement,so any problems,please contact us.we will reply in 12 hours. 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.