WIRELESS SYSTEM: AP41 OM2 INTERCHANGEABLE MICRO.B Band 554Mhz586Mhz R41 DIVERSITY RECEIVER WIRELESS MICROPHONE SYSTEM WITH H60/OM2 HANDHELD TRANSMITTER.A valuable wireless handheld diversity system with the Audix OM2.The OM2, our best-selling vocal microphone, has a slight bass proximity, a mid-range tailored and a full-bodied sound. Ideally optimized for small to medium-sized PA systems, the OM2 is a workhorse microphone known for its excellent on-stage isolation, excellent feedback rejection, and ability to handle high sound pressure levels without distortion.