Features Compatible with most standard receiver connectors: Futaba, Hitec, Sanwa, GWS, etc. Ideal for trucks, boats, racing cars, helicopters and planes. Power supply: via an external adapter. Stable and shockproof. - Metal gear - Double ball bearing - Length of connector cable 300mm Dimension: 40mm x 19mm x 43mm Weight: 55g Operating speed: 0.17sec / 60 degrees (4.8V without load) Operating speed: 0.13s / 60 degrees (6.0 V without load) Stall torque: 13 kg-cm (180.5 oz-in) at 4.8 V Stall torque: 15 kg-cm (6.8 V) Operating voltage: 4.8 - 7.2Volts Gear type: All metal gears Connector wire: Heavy Duty, 11.81 "(300mm) Shipping list