Realistic Lights, Sounds, and Vibration with the separately sold MFC Unit:
6 Types of Semi-Trailer Separately Available
Specifications 
●Length: 692mm, Width: 192mm, Height: 330mm, Weight: Approx. 3.9kg (*with all equipment attached) ●Wheelbase: 433mm＋103mm ●Tread: 156mm (Front), 138mm (Rear, Double Tire) ●Chassis: Aluminum & Polycarbonate Resin Ladder Frame ●Suspension: Front/Rear Leaf Springs ●Caster Angle (Front/Rear): 0°/0° ●Camber Angle (Front/Rear): 0°/0° ●Toe Angle (Front/Rear): 0°/0° ●Dampers: Front/Rear Aluminum Friction Dampers ●Drivetrain: Rear 2-Axle Drive　●Transmission: 3-Gear Transmission (gear shifting operated from transmitter) ●Gear Ratio: (1st Gear) 32.49:1, (2nd Gear) 17.76:1, (3rd Gear) 10.66:1 ●Diff Gear: 3-Bevel Diff. ●Motor: Type 540 ●Tire Width: 22mm (Front/Rear) ●Tire Diameter: 83mm (Front/Rear) ●Requires: 4-channel transmitter & receiver, MFC-01, 2 servos, 7.2V battery pack & charger (sold separately)