Catalog > Microphones > Condensers ITC T-511A T-511A MICROPHONE CONDERSOR WITH BUILT-IN CHIME Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview Condenser Mic Microphone(Built-in chime) Specifications Model T-511A Element / s Φ9.7 Condenser Frequency range (MHz) 80~12000Hz Operating Voltage DC3V Output Impedance ( Ω) ≤200 Polar pattern Heart-shape Sensitivity -43dB±3dB WEIGHT & DIMENSION Dimension 110×130×40mm Weight ( KG ) 0.75