The shell is made of metal CNC processing, with a gong groove the middle shell. The appearance is more beautiful and the heat dissipation effect is better. IP67 waterproof performance, suitable for more scenarios It can be set to pay-in (turntable) mode through the programming card Long-life brushless motor, more stable performance Use high- metal gears Fully enclosed ball bearings, higher and longer life Use magnetic sensing potentiometer (can be rotated 360 degrees) It can be programmed through the steering gear programming card (you can set the steering gear rotation angle, position, output power, damping, sensitivity, reset, forward and reverse, locked-rotor protection, etc.). Support high voltage input: 4.8-8.4V Basic parameters: Dimensions: 40.8 x 20.2 x 29.5 mm Weight: 64g Working voltage: 4.8-8.4V Torque: 4.8V: 19 kg-cm 6.0V: 23.5 kg-cm 7.4V: 26.8 kg-cm 8.4V: 30.8 kg-cm Speed: 4.8V: 0.11 sec/60° 6.0V: 0.09 sec/60° 7.4V: 0.08 sec/60° 8.4V: 0.07 sec/60° Waterproof rating: IP67 Motor type: high voltage brushless Gear type: steel gear Potentiometer type: magnetic sensing potentiometer Suitable for: helicopters, fixed wing, remote control vehicles, remote control boats, robots, industrial intelligence, etc. Colour: Black material: metal Package Contents: 1 x servo 1 x Metal arm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.