Product Description From Shure:
The FP410 uses Shure IntelliMix® to dramatically improve audio quality
by providing greater gain-before-feedback, reducing the pickup of ambient
noise and reverberation, and virtually eliminating comb filtering effects.
IntelliMix® combines three key features: NOISE-ADAPTIVE THRESHOLD
activates a microphone for speech but not for constant room noise; MAXBUS
limits the number of activated microphones to one per talker; LAST MICROPHONE
LOCK-ON keeps the most recently activated microphone open until a newly
activated microphone takes its place.
Primary applications include video production, broadcast, conference recording, and field production. One rack space high, accessory rack ears supplied. Battery (two standard 9-volt alkaline) or 120/230 Vac power.