Associated sphere TC speed control has optimized software designed especially for touring car racing. Forward only. Launch control for rocket fast starts. ADPC (Advanced Digital Phase Control) insures maximum motor performance. Compatible with NiCd, NiMH and LiPo batteries. Redesigned brake software for brushed-style braking. Automatic brushless/brushed adaptation. Automatic NiMH-LiPo adaptation. Low profile heat sinks with integrated high performance fan. Internal Temp-Check system. Vector X11 7.5 turn brushless motor has sensored brushless technology developed in conjunction with LRP's. Sphere and sphere competition brushed and brushless speed controls.