Audix ADX20i Wireless Condenser Instrument MicrophoneThe ADX20i miniature condenser microphone is applicable for professional stage and studio applications. This microphone is primarily used for miking most reed and brass instruments. The ADX20i has a uniformly controlled cardioid polar pattern, which provides excellent isolation and feedback control on stage with natural sound reproduction at very close distances. The ADX20i condenser instrument microphone is lightweight, compact, and simple to use.