The Electro-Voice RE3-ACC-CL3 is a robust, general-purpose lavalier microphone. It is ideal for presentation and public speaking where its full and accurate sonic characteristics, coupled with its feedback-rejecting cardioid polar pattern deliver a clear and intelligible voice. The cardioid pattern provides acoustic isolation and gain before feedback in situations where the ambient sound reinforcement system volume might cause an omnidirectional lavalier to feed back. The small clothing clip attaches the microphone securely to clothing items or surfaces. The included foam windscreen is effective in reducing wind noise. The 4- pin mini plug is compatible with all current ElectroVoice bodypack transmitters, as well as many other brands who use the 4-pin mini connector convention.