There's no rule that says learning shouldn't be fun, or that playing can't be valuable. If there is, we created SPRK Edition to break it. We know that kids love Sphero, so we turned that love into learning and creation. SPRK makes the skills of the future approachable and practical. And most of all, fun. Ball so hard sphero's tough polycarbonate shell protects the advanced tech inside. Drive the revolution sphero is propelled by an electric motor - rolling up to 4.5 mph. Li-Ion (included). For ages 5 years and over. EAN 854211006081. WARNING(S): Not suitable for children under 3 years old.