FLAP CONDENSER MICROPHONE (LAVALIER) Measurement set consisting of: TM1 microphone, WS-TM1 windproof foam, TM-1 suspension clip, adapter for 1/2 '' calibrator, CD with calibration data. The data on the CD is a numerical representation of the microphone's frequency response that, in conjunction with the supplied sensitivity, can be used in countless measurement systems to correct for the microphone's response.