This Texas Instruments Ti 84 Plus CE Python calculator is a must-have for any office or business. With its regular key size and handheld design, it is easy to use and perfect for on-the-go calculations. The graphing calculator has a regular display size and is powered by a power cord. The model number is YDH919 and it features USB connectivity. This calculator is perfect for anyone in need of a reliable and efficient tool for all their mathematical needs.