Specification: Dead band: 2s Working frequence: 1520s / 330hz Motor: brushless motor Operating Speed (11.1V): 0.12sec/60 Operating Speed (14V): 0.10sec/60 Stall Torque (11.1V): 38kg.cm Stall Torque (14V): 47kg.cm Dimensions: 40X20X37mm Weight: 71 g Connector Wire Length: JR 265 mm Bearing: 2BBFeature:- 12V High voltage- 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-12V7146 46KG Servo