This is the Reachy Mini Hoverboard: a nifty accessory that gives Reachy Mini robots wheels, so they can move around in your home while maintaining its balance. You simply have to put your robot on it, secure it with the locking mechanism, and you are set. It is powered by a Raspberry Pi CM4 processor and uses 9 servo motors for fluid movement. This robot also has 2 animated antennas. It has a 5W speaker and 4-microphone array.
This hoverboard has Bluetooth, WiFi, and USB-C connectivity. It has two motorized wheels and soft tires. It is compatible with Reachy Mini Wireless. You can find out more here.