Power Function Accessories PlugIn Blocks for Lego 8883 M MotorIt is a medium strength motor Speed up to 700 rpm torque up to 20 NcmIt has stable performance stable output and low noiseThe product does not include the battery with power function so you need to buy it separatelyOther LEGO engines and battery boxes LED lighting kits and other accessories are available in this shop You can buy them together which is more costeffective