Traxxas 39085 E-MAXX Brushless Edition 4WD Monster Truck (1/10 Scale), Colors May Vary NEW Factory-installed waterproof MXL-6s Brushless Power System High-power 2200Kv motor TQi 2.4GHz Radio System with Docking Base with RPM/speed, motor temperature and voltage telemetry sensors Waterproof electronics for all-weather driving excitement in water, mud and snow! Traxxas Power Cell Batteries Included