TRX3905 E-Maxx 4WD 1:10 EP Truck RTR ! Traxxas Power Cell Batteries Included! 16.8 Volts of Pure Maxx® Muscle Top Speed: 30+mph! Traxxas Power Cell Batteries Included! Waterproof electronics Waterproof servos & ESC Four-Channel micro receiver All-new single speed transmission (Two-Speed optional) Revo®-Spec sealed pivot ball suspension Revo®-Spec sealed differentials Revo®-Spec sealed outer and center driveshafts All-new, low-CG chassis design Stronger chassis braces New transmission skid plate Scaleable battery compartments Snap-lock battery hold downs Dual-servo steering system Integrated servo saver Hex hardware throughout 3.8" mirror chrome Twin-Spoke wheels 3.8" Maxx® chevron tires