An IFB, or Interruptible Foldback, is a communication device used in broadcasting to allow a presenter or reporter to hear instructions from the production team while they are on air. This device is crucial for live reporting and breaking news coverage, as it ensures that reporters can receive real-time updates and guidance without interrupting the flow of their broadcast. The use of IFBs enhances coordination between on-screen talent and behind-the-scenes staff, allowing for smoother transitions and timely information delivery during critical moments in live reporting.