This is the Traxxas Slash 4X4 Ultimate with On-Board Audio (OBA). The Traxxas On-Board Audio System brings the sound and excitement of full-size 900 horsepower Traxxas team trucks to your track or backyard. Traxxas OBA lets you hear the roar of the engine and the gears shift as the RPMs scream through the powerband.
Slash 4X4 Ultimate combines Velineon Brushless Power and Traxxas Stability Management (TSM) with a host of upgrades designed for all-out performance. Hard-anodized GTR shocks, aluminum caster and steering blocks and stub axle carriers, and a low-CG chassis provide lighting-fast steering, composed handling, and precision control that set the standard for short-course performance.