As the golden section of m!ka Mic Arms, the M-sized m!ka Microphone Arm is the perfect all-rounder in terms of microphone setups. The mic arm is a great choice for shaping work tables or interview rooms where the distance between mic arm and speaker does not exceed 31" (78.7cm).With the m!ka Mic Arm, there are only a few knurled screws to achieve a secure fit and professional balancing of your microphone based on its weight. Each m!ka Mic Arm allows you to adjust the position of your microphone within seconds. Take full advantage of the given variety of mounting options to customize your microphone setup to your individual needs.OPTION On Air : The optional OnAir indicator gives you a dual-color (red/white) 360 OnAir light right above your microphone to indicate multiple states, such as OnAir or MicReady. Simply reverse the polarity of the drive voltage and switch between red and white.