This lot of 5 VEX IQ Smart Radio Modules is a great addition to your robotics parts collection. These receivers are brand new and have never been used. They operate on both 2.4 GHz and 900 MHz frequencies, and are Bluetooth compatible. They are perfect for use in remote-control model VEX robotics projects. These modules are a must-have for any robotics enthusiast looking to take their projects to the next level.