Power HD BLS-0904HV 9kg 7.4V Brushless Digital Servo

Power HD BLS-0904HV 9kg 7.4V Brushless Digital Servo with Metal Gears and Double Bearings 

Power HD BLS-0904HV servo
Specifications:Torque:  8 kg-cm (6.0V); 9 kg-cm (7.4V)
Speed:  0.05sec (6.0V); 0.04sec (7.4V)
Operating Voltage:  6.0 ~ 8.4 V
Weight:  64g (2.25 oz)
Bearing Type:  Double Ball Bearing
Motor Type:  Brushless Motor
Gear Type:  Titanium & Steel
Operating Temperature:  -20~60centigrade
Working frequency:  1520μs / 333hz
Size:  40.0 x 20.0 x 39.0mm (1.57 x 0.79 x 1.53 in)

Package content:
1x servo
1x accessories