The Discreet Acoustics Modular-Series is a new modular back electret microphone system. It comprises five capsule modules and six installation modules (five gooseneck and one hanging module) which can be used in any combination. The modules screw together for extremely stable and reliable connections. Appilcations include speech reinforcement and recording in places of worship, conference centers, at panel discussions, etc.FeaturesCardioid pickup patternWide frequency rangeScrew on capsuleGold plated contactsHigh performance windscreenSpecificationsTransducer Principle: Condenser prepolarizedFrequency Range: 50-20,000 HzPolar Pattern: CardioidSensitivity at 1kHz: 20 mV/Pa = -34 dBVEquivalent Noise Level: <21 dB-ASound Pressure Level for 1% THD: 125 dBS/N Ratio (A-weighted): >73dBImpedance: <600 ohmsPower Requirement: 9 to 52 volts phantom power, requires DPA adapter (incl. in GN or HM modules)Finish: Dark gray matteSize (dia. x L): 0.5" x 0.8"Fitting Mounting Modules: GN 15, GN 15 E, GN 15 ES, GN 30, GN 30 E, GN 30 ES, GN 50, GN 50 E, GN 50 ES, GN 155 SET, HM 1000, LM 3, LM 3 LIncluded Accessories: W 30 Two stage foam windscreen