The NumWorks Graphing Calculator MODEL N0110 is a small, battery-powered calculator that is compatible with smartphones. It features an LCD display and USB connectivity, making it a convenient tool for solving equations and graphing functions. The calculator is rechargeable and comes with a single lithium ion cell, providing long-lasting power for your mathematical needs. With a sleek white design and compact size, this graphing calculator is a reliable choice for students, professionals, and anyone in need of a reliable calculator for complex calculations.