Operating Voltage: 6.0 ~ 8.4 DC Volts Weight: 63 g (2.22 oz) Bearing Type: Ball Bearing x 2 Motor Type: Brushless Motor Gear Type: 7075+Steel Max current: 4.0A Operating Temperature: -20℃~60℃ Working frequency: 1520μs / 1666hz Size: 41.0 x 20.0 x 29.0 mm ( 1.61 x 0.79 x 1.14 in)
