Specifications: GS4308MG Operating temperature: -20?~+60? Operating voltage: 4.8V ~ 6VDC; Working frequency: 1520 s / 333hz; Torque: 0.58kg.cm at 4.8V; 0.65kg.cm at 6V; No load speed: 0.14S/60 at 4.8V; 0.12S/60 at 6V; Corner angle: 180 Product weight: 5.8g; Boundary dimension: 20.22*8.5*24mm; Motor type: DC motor; Gear type: Metal gear. Package included: 2 * 4.3G Full Metal Gear Digital Servo 2 * Servo Accessories