The present invention relates to a microphone actuator comprising a stepper motor, coupled to a gear which is arranged to cause extension and/or retraction of a microphone from or into a housing respectively. The invention also relates to a method of initialising a microphone actuator comprising the steps of initially moving the actuator to a retracted position until a retracted limit stop is reached, receiving user input indicating that a setup mode has been entered, receiving user input indicating that the actuator should be extended or retracted, receiving user input indicating that a desired actuator position has been reached, and storing the desired actuator position in memory.