Sennheiser EM 100 G4 Rackmount Receiver (Renewed)Reliable Wireless Audio with the Sennheiser EM 100 G4 Rackmount Receiver (Renewed) The Sennheiser EM 100 G4 Rackmount True Diversity Receiver delivers dependable wireless audio performance in a professional setting. This renewed unit has been thoroughly inspected and tested to ensure it functions and looks like new, providing excellent value for your audio needs. Key Features: True Diversity Receiver: Ensures stable and reliable signal reception.