The Bluetooth Hat is your gateway to doing more with Cubelets robot blocks. Connect your robots with free apps to change what your Cubelets can do. Cap your robot constructions with the Bluetooth Hat to quickly and easily pair with any Bluetooth-enabled wireless device. Discover thousands of robot-building possibilities with the Bluetooth Hat and the Cubelets companion app, available on iOS, Android, and FireOS. The Bluetooth Hat is the key to getting more out of your Cubelets robot blocks. It provides a fast, easy connection between Cubelets robot constructions and free Cubelets software. Use the Cubelets App to create remote control constructions, or Cubelets Console to visualize data, swap Personalities, and code new Personalities for your Cubelets.