Two different types of AA batteries were included with the AP-60. Which batteries belong in the remote, and which belong in the microphone?

• The LR6 (Alkaline) batteries should be installed in the pendant microphone. The R6 (Manganese Dioxide) batteries should be installed in the remote. The different battery types will work in either device, but you'll get the best performance by using the correct battery type.
  
  Note: When you replace the batteries, you can use Alkaline batteries in the pendant microphone and the remote.