Specification: Dead band: 1s Working frequence: 1520s / 330hz Motor: brushless motor Operating Speed (4.8V): 0.13sec/60 Operating Speed (6V): 0.11sec/60 Stall Torque (4.8V): 17.6 kg.cm Stall Torque (6V): 22.8kg.cm Dimensions: 40X20X37mm Weight: 71g Connector Wire Length: JR 265 mm Bearing: 2BBFeature:- High performance programmable digital brushless standard servo- High-precision Taiwan-made steel gears with hard anodizing- Full CNC aluminium Shell structure- Dual ball bearings- Waterproof Package include:1x JX BLS-7122MG 22KG Servo