Using the Carrera RC Hummer EV is easy. First, insert 2 AAA batteries into the controller. Then, charge the LifePO4 700mAh battery for the RC car using the included USB charger. Once charged, turn on the car and the controller, and you're ready to go. Use the controller to drive the car forward, backward, left, and right. When not in use, store the car and controller in a dry place. Avoid exposing the car to water or extreme temperatures. Regularly check the battery connections to ensure they are secure. Remember, this toy has small parts, so keep it away from children under 36 months to prevent choking hazards.