EM4 Robot. A boost in confidence - the EM4 Educational Motorized Robot Kit is your 3-speed vehicle to positively impact a young builder by using OWI's robotics theory. OWI has designed this kit for the lovers of simplicity. Everything from its compact easy-assembly design to its need for only one AA battery provides your child with a fun and easy-to-assemble robotic playmate. A child can bring EM4 Educational Motorized Robot Kit to life in one of its four exciting modes: Cricket-who's a joy on 6 legs. Beast-the master of bipedal movement. Trailer-the little engine that could move forward thanks to its motorized transmission. Good ole Grandpa-bot-everyone's favourite bobble-headed gear-driven family member. Each mode is equipped with its own unique form of movement and with a few easy steps, transforming between each mode is a breeze. OWI is a brand you can trust and products that just make sense.