Specifications Dimensions (Length x Width x Height): 40.2 x 20.0 x 38.6mm Net Weight: 56g (1.41oz) Speed: 0.14sec / 60 angle (7.4V), 0.12sec / 60 angle (8.4V) Torque: 14.8 Kg.cm / 205.5 oz.in (7.4V), 16.9 Kg.cm / 234.7 oz.in (8.4V) Gear Material: Metal Application: RC Model Airplane / Car / Boat 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.