Electro-Voice ULM21 - Unidirectional Lavalier Microphone (EV TA4F)The ULM21 is a rugged lavalier microphone with a directional pickup pattern. The small size and pickup pattern helps reduce feedback and improve sound quality. Features: Back electret cardioid microphone Clothing clip attaches at microphone body to maintain cardioid pattern Integrated 6 foot (180cm) cable TA4F connector is compatible with all EV bodypack transmitters Use with TXA for wired XLR applications