Features: Multiple Control: Support simultaneous control of 2 Servo to meet various Servo control requirements. Knob control: manual debugging through knob, convenient for users to adjust the servo angles quickly and accurately. Serials control board: with serials communication function, for computer or other devices for programme control, providing more automation operate option. Servo debugging board: for Servo debugging, providing accurate control and adjustment functions, suitable for Servo development and testing. Debugging Indicating: Equipped with indicating light to show the operations of the Servo, helping users to understand the working condition of the Servo in real time, which is convenient for debugging and troubleshooting.