Graphing Calculator The graphing calculator that makes learning maths easier Ergonomic, open source and evolutive, the NumWorks graphing calculator is designed for today?s needs with today?s technologies. NumWorks makes learning maths easier for everyone: professors or students? and it perfectly suits the whole high school curriculum. Simple and innovative design Specifically designed for high school usage, the NumWorks graphing calculator is an innovative and elegant device, both in terms of looks and operation. The NumWorks calculator is rechargeable with a micro USB port and can last up to more than 20 hours in intensive use or multiple years in standby mode. Transparency and open collaboration Because we believe in education and collective intelligence, we're providing you with all our know-how and offer you to be part of the first collaborative calculator. Ergonomic keypad The keyboard is divided in 3 thematic areas to provide you with the most convenient use: the navigational area that allows you to easily select a menu, the advanced functions area and the numerical keypad with well-separated keys to be used precisely and quickly. The calculator without a user manual With its 6 tailor-made apps, you'll get straight to the answers. Its functionalities cover the whole high school curriculum and have been designed with teachers from the NumWorks community. Product Features For high school students User friendly and easy to learn High resolution color screen (320 x 240 pixels) and high capacity rechargeable battery (20+ hours per charge) Languages: English, French, German, Spanish, Portuguese Includes an USB charging cable Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!