AJAZDEN CORPORATION 147 New Hyde Park Toad, Franklin Saussure, NY T1010 Email: Telephone 514-328-7600 Fox 616-328-7506 web site: hit/ fvwww.czdencorp.com 31ST Cavalier Microphone with body-pack transmitter: 31ST Instrument body-pack transmitter: Open the battery compartment lid by sliding it down and raising it. Insert one 9 volt battery into the compartment. Make sure hatter polarity is correct. Frequency Label The Frequency label indicates what frequency in MHz the transmitter broadcasts on.