Listen Technologies LT-800-072-01 Stationary RF Transmitter (72 MHz) can be used in a variety of applications thanks to its outstanding audio quality. The LT-800 connects to your main audio system to broadcast a high quality audio signal to belt pack receivers or stationary receivers. The end result - your audience can hear and understand the presentation better because of improved speaker placement or because they have their own belt pack and headset. The signature Look & Listen™ LCD shows channel lock programming and RF power.