Mike Alert makes installation of Yellowtec's "Mika" mic arms easy, it lets you connect the mic arms integrated dual-color Red/White tally lights to your console. Use Red for "on the air" and White for "Ready" or a secondary indication. MIKE ALERT is an interface device for controlling the dual-color tally indicators on popular “mic arms”. The Mike Alert unit allows two mic arms’ tally lights to be independently controlled, and provides power and control circuitry to operate the white and red tally indicators in each arm. The Mike Alert unit provides 12 volts DC to operate the tally lights, with automatic polarity control to select either the white or red light. The Mike Alert can be interfaced to virtually any broadcast console, router, or any device that provides for tally light control. There are two isolated inputs, “Red” and “White”, for each mic arm. The Red light is normally used to indicate on the air, the White light is normally used to indicate Ready or a secondary status. Note that the Red input will always take precedence: if both inputs are active, only the Red tally light will operate.