Shure SV100-WA Handheld Cardioid Dynamic Microphone offering a frequency response tailored for reproduction of vocals and speech in concert venues, lectures, houses of worship, karaoke, and presentations. Its dynamic element requires no power source and delivers a frequency response of 50 Hz to 15 kHz. The cardioid polar pattern rejects sound behind the mic, yielding enhanced immunity to feedback and decreased pickup of room ambience.