Specifications Dimensions: 40mm x 20mm x 36.6mm Speed: 0.16 sec / 60 angle at 4.8v Torque: 9 kg-cm at 4.8v Bearing: 2BB Power Supply: 4.8v Features Coreless Motor Metal Gear Double Ball Bearing Connector Wire Length 300mm This is special edition bundle with RCECHO Apps license key included for more fun!. RCECHO is a registered trademarks. Products only distributed by authorized seller.