Digital sound is recorded from the real subjects to deliver the highest level of realism including start up, Acceleration, engine shut down, turret rotation & gun elevation movement & weapon deployment. Electronic components are of the highest quality including 2.4ghz FHSS system and Class D Amplifier to deliver the finest quality sound, while intelligent gaming system is built in to each tank allowing tank battles or target shooting with a sophistication not seen in ready to run RC before. Detailed research has resulted in substantial upgrades to the models in terms of components, markings and paint schemes