The Sonifex SignalLED Twin Flush Mounting Sign (LD-40F2ONA-MCL) features two 20cm illuminated LED displays showing “ON AIR” and “MIC LIVE.” Ideal for radio, TV and recording studios, it provides clear visual indicators during live broadcasts and recording sessions. Featuring energy-efficient RGB LEDs, adjustable colours and multiple lighting modes, it offers a sleek, professional flush-mounted design.