The President Digimike is a premium electret CB microphone with a built-in Noise Reduction Circuit (NRC), designed to deliver the clearest possible modulation across all modes — AM, FM, and SSB — by eliminating background noise before transmission. The NRC filtering level is adjustable from 1 to 5, allowing the driver to dial in the right amount of noise suppression for their environment.Up/down channel buttons are built into the microphone body for hands-on-wheel channel changes. Compatible with President CB radios using the standard 6-pin President wiring. Also works optimally with VOX-equipped radios.Usage note: Keep the Digimike at least 10cm (4") from your mouth and avoid direct contact with the microphone for best NRC performance.Key Features Type: Electret with Noise Reduction Circuit (NRC) NRC levels: 1–5 (adjustable) Modes: AM / FM / SSB Up/down channel buttons Connector: 6-pin President wiring VOX compatible