Outfitted with infrared lasers, these remote-controlled vehicles let two adversaries engage in a battle of mobile domination. Combatants use remote transmitters with digital proportion trim controls to deftly maneuver their cars, fire lasers at each other, or activate an invisible shield that momentarily blocks an opponent's laser. The first vehicle to score 10 hits emerges victorious. Each vehicle can also operate autonomously, enabling a lone driver to battle a microprocessor-controlled car. Includes an easy-to-assemble arena to contain cars during battle. Requires 12 AA and two 9-volt batteries. Ages 10 and up. 6 1/3" L x 4 1/2" W x 3" H. (5 lbs.)