WIRELESS SYSTEM: AP41 INTERCHANGEABLE MICRO BP.WLESS RCEP R41 WITH B60 BAND B-BAND TRMS 554Mhz586Mhz.R41 RECEIVER WIRELESS MICROPHONE SYSTEM WITH B60 BODYPACK TRANSMITTER.A professional diversity wireless system with the B60 bodypack transmitter.This bodypack can be used with any lavalier, and instrument microphones from the Audix line, as well as guitar and bass. Optional accessories include a single-space rackmount kit with BNC cables for front-mount antennas, a rackmount kit for mounting two systems in one rack space, active directional antennas, and an antenna distribution system for up to four 4-channel systems.