Optimus Karaoke Echo Microphone (330-3016) Battery Faxback Doc. # 33900 INSTALLING THE BATTERY The microphone uses one AA battery (not supplied). For the longest battery life we recommend an alkaline battery, such as Radio Shack Cat. No. 23-557. 1. Set ON/OFF to OFF. 2. Hold the middle of the microphone, then turn the lower part of the microphone counterclockwise to remove it. 3. Install the battery as indicated by the polarity symbols (+ or -) marked inside the battery compartment. 4. Replace the lower part of the microphone by turning it clockwise. NOTES: If you do not plan to use the microphone for a week or more, remove the battery. Replace the battery when the volume level becomes too low for normal use, or when the power indicator dims or does not light. (YO/EB 5/17/96)