The Audio-Technica ATW-3211/831DE2 3000 Series fourth generation is a frequency-agile, True diversity UHF wireless microphone system designed to give users the power and flexibility to operate within the congested UHF spectrum. The system includes an atw-r3210 receiver, an atw-t3201 body pack transmitter, and an At831Ch cardioid condenser lavalier microphone, and is designed to capture voice and instruments with intelligible and natural sound while minimizing potential interference, for stage, television, lecture, event presentation, or house of worship applications.