HOSSEN&reg; 10pcs TowerPro SG90 Micro 9g Servo Motor High Torgue For RC Plane Heicopter Car Boat Dead band width: 7usec Stall Torque (4.8V): 17.5oz /in (1kg/cm) Operating voltage: 3.0V~7.2V Temperature range: -30 to +60 Operating speed: 0.12second/ 60degree ( 4.8V no load)