T-621A Microphone (Built-in chime) Datasheet Manual Firmware FeatureSpecification:ModelT-621ACapsule TypeCondenserPolar PatternCardioidFrequency Response40Hz-16000HzMic Sensitivity-43±2dBPrelude Sensitivity-50dB±2dBBell Reminder FunctionYESWire Equipment10m (XLRF t turn 6.35 audio cable)Microphone Length420mmDimension 125 x 150 x 455mmWeight0.67kgPower Supply~AC 220/50Hz (Power Adapter DC 11.4V) DC9V