The Electro-Voice RE420-RC3 is a premium condenser microphone head designed for wireless handheld transmitters, delivering rich, detailed, and full-bodied vocal reproduction. Its cardioid pickup pattern provides excellent acoustic isolation, while the multi-stage pop filter minimizes breath blasts and plosives. A selectable two-position high-pass filter reduces low-frequency content below 150 Hz when engaged, and the internal shock mount helps minimize handling noise and vibration. The thread-on design is compatible with Electro-Voice and many other wireless handheld transmitters featuring a standard 3-contact, 1.25-inch diameter, 28-thread coupling.