This new simulator gives you real world flying experiences from the comfort of your home on your PC. Its Interlink Controller plugs into a USB port on your computer. It looks and feels just like a real transmitter and is a great way to learn the basics of flying. You can fly planes, gliders or helicopters without the risk of expensive repair bills and master the controlls before flying the real thing. The transmitter doesnt need any batteries it can directly work with using power from USB on computer.