With much lower latency (up to 2 times faster than the 4PK)programming sophisticationadvancements never before incorporated into a surface system, the 4PKS picks up where the 4PK leaves off. The LCD screen on the stylish transmitter lets you view up to 36 functions,an adapter is included for repositioning wheel heightangle for maximum comfortresponse. A vibrator built into the grip can be programmed to serve any of several functions: as a lap timer, up timer, navigation aidlow battery alert. Extra protection features have been added, including High VoltageLow Battery alarms, as well as automatic system shut-down after ten minutes of non-use. And of course there´s the precisionsecurity of Futaba´s acclaimed 2.4GHz FASST technology that is leading the way in radio control. Competitive drivers with their eyes on the prize have a new weapon for owning the winner´s circle: the 4PKS!