Control channels: 4 channels. Material: ABS. Scale: 1/18. Speed: About 25 km/h. Playing time: about 20 minutes. Control distance: About 60m Car battery: 4.8V 700mAh Ni-Cd Battery (included). Controller battery: 3 x 1.5V AA batteries (not included). Charging Time: About 50 Minutes. (Please do not overcharge the battery.). Functions: Turn left, turn right, forward, backward, climb. Tire material: rubber. Wheelbase: 190mm. Wheel diameter: 70mm. Wheel width: 27mm. Ground clearance: 60mm. Item Size: 27 x 17 x 15 cm Item weight: 650g 45°SLOPE CLIMBING ANGLE; Powerful engine drive; easily deal with the challenges brought by various road conditions; even steep slopes can be easily dealt with. DOUBLE POWERFUL MOTORS: continuous power output with double powerful engines; rock climbing is easy and effortless; suitable for beginners.