This simulator is used for simulate the scenes of real world model aircraft flying. It can help you to increase your real world flying experience from your PC. Connected to PC with USB plug, so it can be used directly without external power. The simulator can support many FMS softwares. Comes with FMS software (version 8.3) and flight models files. Especially without 8 "AA" battery can directly work with computer. Using it can enhance your flying performance skills fast and bring you exciting feelings of flying freely in the blue sky right now!