This is a High Speed Digital Servo. It is designed to work with 450 Helicopters. Features: High Speed Metal Gears Specs: Operating voltage range 4.8V-7.4V Operating speed : 0.05sec@60°/7.4V 0.06sec@60°//6V Torque : 3.7Kg-cm @ 7.4V 3.1Kg-cm @ 6V Weight 20g Working Frequency:1520us/333Hz,800us-2200us/ Ball Beaing : 2BB 12mm Coreless Motor Size:23*12*27.5mm
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