Purchase worry free with the following benefits: Rovers look brand new and show little to no signs of wear. One Year Limited Warranty provided by Underwood Distributing Co. Extended 90 Day Return period Customer Support provided by Underwood Distributing Co. Motion adds a new dimension of engagement in math, science and coding Programming the Rover to move is a fun way to explore topics and concepts in middle grades and high school, promote collaborative problem-solving and spark lively conversations. TI-Nspire™ CX technology and TI-84 Plus CE graphing calculators open new channels for inquiry, exploration and connection as students use the built-in TI-Basic coding language to program the TI-Innovator™ components. Students program Rover to put math and science in motion, adding a physical dimension to verbal, symbolic and graphic representations. Rover also provides an accessible on-ramp to more advanced coding, STEM and robotics projects.The TI-Innovator Rover is out-of-the-box ready to connect to the TI-Innovator™ Hub (sold separately), which is placed in a special bay on Rover. Either a TI-84 Plus CE graphing calculator or TI-Nspire™ CX handheld is secured with clamps on top of Rover.A durable, rechargeable battery (included) powers Rover's two motors. The vehicle also includes a color sensor; a distance sensor; an LED display; a holder for a marker to draw paths on paper; and a gyroscope to measure heading. Hardware Aluminum vehicle chassis Rechargeable battery Two drive wheels with independent motors High-resolution motor shaft encoder sensors Marker holder Front-mounted ranger Gyroscope Bottom-mounted color sensor Red-green-blue (RGB) LED Controlled by TI-Innovator™ Hub Compatible graphing technology TI-84 Plus CE graphing calculator TI-Nspire™ CX graphing calculator TI-Nspire™ CX CAS graphing calculator TI-Nspire™ CX II graphing calculator TI-Nspire™ CX II CAS graphing calculator TI-Nspire™ CX Student Software TI-Nspire™ CX CAS Student Software TI-Nspire™ CX Premium Teacher Software Looking for more information? Learn about all of the other Ti-Innovator Products from our post on Exploring the Ti-Innovator Product Line!