This is the brushless electric powered, 2.4GHz radio controlled, ready to run 1/10 scale Traxxas Slash 4x4 Short Course Racing Truck with Traxxas Stability Management and On-Board Audio. FEATURES Traxxas Stability Management (TSM): Superior tuning algorithms run on high-speed electronic components to control wheel spin and steering direction on loose dirt, concrete and even ice and snow. TSM can be fine tuned or turned off by adjusting the multi-function knob on the TQi transmitter or the slider in the Traxxas Link app On-Board Audio System: Uses sound sampled from full-size Traxxas team trucks, on/off button and volume controls adjust settings from stealth mode to wide open, intuitive sounds respond to throttle input from transmitter, rocker switch on transmitter shifts sound to "neutral" if stopped for more than 10 seconds engine sound shuts off, tap the throttle to hear the engine fire back up Chassis: Nylon composite construction, low CG configuration that positions battery and electronics deep in the chassis for better cornering speed and stability Drive: Four wheel with lightweight extruded aluminum shaft Radio: Traxxas TQi DSSS 2.4GHz high output with Traxxas Link Wireless Module that allows wireless connection to the Traxxas Link Application with the Traxxas Link Module (not included, order TRAC6511) for instant Bluetooth connectivity to an intuitive high definition graphical user interface featuring Real-Time Telemetry, Customizable Dashboards, Steering/Throttle Expo, Steering/Braking Dual Rate, Servo Reversing, Endpoint Adjustment, Profile Customization and Sharing (sensors not included and must be purchased separately) receiver with 3 telemetry ports, and failsafe is included and enables model to be tuned from an iPhone 4S, 5, 5C 5S or iPod Touch 5th generation or later, iPad 3rd generation or later, or iPad Mini Electronic Speed Control: Traxxas VXL-3S waterproof, with high- current connector, training mode, reverse and low voltage detection for use with 2S and 3S LiPo packs Motor: Traxxas Velineon 3500 with ultra high temperature Neodymium magnets and high speed ball bearings Spur Gear: 54 tooth, 0.8 module 32 pitch Pinion Gear: 13 tooth Battery: Traxxas Power Cell 8.4V 3000mAh 7-cell with Traxxas high- current connector, iD Auto Battery Identification allows Traxxas iD equipped chargers to automatically set and optimize charge settings for specific battery Battery Charger: 4A DC powered peak charger Body: Painted and trimmed Bumpers: Front and rear, composite construction Shocks: Traxxas Ultra oil filled with high-volume body, silicone bladders, dual X-ring seals and progrssive springs Suspension: C-hub design Transmission: Ball bearing equipped with adjustable Torque-Control slipper clutch with finned aluminum alloy pressure plates Differentials: Revo-spec sealed silicone filled planetary gear type Ball Bearings: Rubber sealed Caster: Adjustable caster/toe-in refers to the angle of the front suspension when viewed from the side of the car in relation to the chassis Camber: Adjustable, camber refers to the angle of the tops of the tires from vertical when viewed from front or behind vehicle Tires: Mud-Terrain, with foam inserts 1.7" (43mm) wide, 4.3" (109mm) diameter Wheels: Beadlock style split spoke with chrome center and color molded outer rim to simulate beadlock, 12mm hex Steering: Dual bellcrank pivoting on rubber sealed bearings with integrated cam-type servo saver, waterproof digital high- torque (125 oz-in) servo INCLUDES Traxxas Slash 4X4 Short Course Race Truck w/ TQi 2.4GHz radio system, brushless ESC and motor, body, 7-cell 3000mAh NiMH battery, DC powered charger, decals and illustrated instruction manual Traxxas Stability Management and On-Board Audio REQUIREMENTS AA Cells: Four for transmitter SPECIFICATIONS Vehicle- Length: 22.36" (568mm) Width: 11.65" (296mm) Height: 8.42" (214mm) Front and Rear Track: 11.65" (296mm) distance between outer edges of wheels side-to-side Ground Clearance: 2.5" Body- Length: 21.25" (540mm) Width: 11.5" (292mm) Height: 5.5" (140mm)