Calculator With Standard Functions From Texas Instruments, Model Ti-1795 Sv. Product Details The classic mini-desktop calculator for home, office, or retail with big keys and a giant SuperView display. Key Features: Well-spaced keyboard with large, contoured keys for easy operation Change sign (+/-) key simplifies entry of negative numbers Square root key is useful for schoolwork Solar and battery powered to work anywhere Angled display for easy viewing Angled Super view display for easy viewing Solar and battery powered to work anywhere Change sign (+/-) key simplifies entry of negative numbers Easy keyboard operation Change sign (+/ -) key Square root key Solar and battery powered Angled display Easy keyboard operation Change sign (+ / -) key Square root key Solar and battery powered Angled display 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.