Designed for permanent installation, the Audio Technica U853PM UniPoint cardioid condenser hanging microphone comes equipped with a wall/ceiling plate power module. The U853PM microphone is phantom-powered and features UniGuard innovations that offer unsurpassed immunity from radio frequency interference. It accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine line cardioid polar patterns. Its 80 Hz low-cut UniSteep filter reduces pickup of low-frequency ambient noise.