Need to assemble according to the instructions. Two modes: gesture sensing follow mode, infrared obstacle avoidance adventure mode. Adventure mode: Infrared radar in the product can sense the obstacle ahead and move forward slowly while avoiding it. Follow mode: If there is an object in front, it will follow, if it is too close, it will automatically retreat. After the assembly is completed, press and hold the button on the top of the robot face for 3 seconds to turn it on/off. Press the button to switch the mode.