WIRELESS SYSTEM: INTERCHANGEABLE WLESS MICROPHONE RCEP R41, TRMS H60/OM2 AND B60 BAG ADX10 B. WIRELESS MICROPHONE SYSTEM DIVERSITY RECEIVER R41, HANDHELD TRANSMITTER H60/OM2 AND B60 BODYPACK WITH ADX10 LAVALIER MICROPHONE A combined system that allows the flexibility of using the OM2 handheld transmitter or bodypack system with the ADX10 cardioid backup microphone. This package is designed for rental companies, hotels, presentation events, education and applications where only one transmitter would be required at a time. Please note: it is not possible to use both transmitters simultaneously refer to the AP42 C210 combo pack where both transmitters can be used at the same time.