The team from the University of California, Berkeley has unveiled a mini-drone weighing 21 mg with a diameter of less than one centimeter. The robot uses two internal magnets acting as propellers when affected by an external magnetic field to generate lift force. Professor Liwei Lin noted: "This flying robot can be wirelessly controlled so that it approaches and hits the designated target." Adjustment of the magnetic field allows for precise control over the flight path of the device. The robot is capable of hovering in the air and changing its flight direction, but it cannot correct its movements in real-time due to the absence of onboard sensors. Engineer Fanpin Su emphasized potential applications of the robot for artificial pollination or inspection of small spaces such as inside a pipe.