BRONSTEIN LM15 Lavalier Lapel Microphone Best Sound Ever from a Lav - Crystal Clear HD Sound! 3.5M TRS Connector (Standard for Sound Packs), Sensitivity:-47dB+/-2dB, , Wire: 1M Patent Pending "NOISE REDUX" technology completely eliminates noise Output Impedance: 2.2 k, Sensitivity:-47dB+/-2dB Includes Foam Windscreen, Sturdy Long Lasting Tie-clip