Developed for computer voice recognition applications, the Shure 503BG gooseneck microphone offers excellent voice fidelity while reducing background noise. The 503BG mic features a low-impedance, moving coil type transducer with an integral humbucking coil and an attached 2-conductor shielded cable with a built-in strain relief. It produces a frequency response with an essentially constant output voltage over the voice spectrum when used close to the sound source. The 503BG mounts to a gooseneck (not included), a fixed pipe or a microphone stand using a standard 5/8"-27 thread. It comes with an aluminum case with a black enamel finish.The 503BG mic maximizes performance in close-talking applications through its tailored frequency response, directionality and distance discrimination. It optimizes and controls sounds within the 100 to 7000 Hz frequency range and reduces sounds outside that range. The Shure microphone rejects noise through its inherent directional properties and dis