The Zebra DM28 dynamic unidirectional microphone offers professional sound quality for vocal and instruments. Its unidirectional polar pattern reduces the pickup of undesired off-axis sounds. It?s well suited for on-stage vocal and instrument uses as well as the karaoke enthusiast. This microphone features an impedance of 600 Ohms, a sensitivity of -52dB ? 3dB, and a frequency response of 50Hz ? 18KHz.