The RE-2 wireless system takes frequency agility to a whole new level. You can be assured that there will be no interference, drop-outs, or compromised audio quality. Simply press the one touch Auto-ClearScan» button and the receiver finds not just the first clear channel but the clearest channel in seconds. That's it. This bodypack system includes BPU-2 transmitter, RE-2 receiver RE97 MiniMic headworn in light beige all in a hard shell case.