This additional wireless handheld microphone for the Denon Professional Envoi loudspeaker (or Marantz Professional Voice Rover) allows users to always carry a backup wireless mic. In fact, there's already a slot for this second mic in the Envoi's mic storage compartment. Alternately, users can purchase a second wireless receiver and run two wireless mics simultaneously.
The mic is lightweight, rugged and uses only 2 AA batteries, so adding a second wireless handheld mic to your Envoi is a sound investment.