This black Sanken COS-11D Omnidirectional Lavalier Microphone features a 2.5mm Switchcraft connector and is wired for use with the Lectrosonics MM200 wireless transmitter. The COS-11D has a condenser capsule with a vertical diaphragm and an omnidirectional polar pattern. The mic itself is optimized for use with vocals. It also features a design to overcome interference that is created by radio frequencies from wireless transmitters. A holder clip, metal windscreen, rubber mount, and plastic case are included.