Williams Sound MIC 090 Mini Lapel Clip Microphone; Use with PPA T27 transmitter, PFM/PPA T46 transmitter, PFM/PPA R38, R37 receivers; Omnidirectional condenser; 3.5mm right-angle plug; 39" cord length Use with PPA T27 transmitter, PFM/PPA T46 transmitter, PFM/PPA R38, R37 receivers Impedance 1.5 k, Frequency Response 20 Hz  18 kHz Dynamic Range 79 dB, Sensitivity -56  3 dB Signal-to-Noise Ratio 63 dB 3.5mm right-angle plug, 39" cord length