Sennheiser Wireless Microphone Usage Guide To turn the microphone on, press the power button located under the battery flap. The on light will display a solid red light. If the on light is flashing, then the battery is almost flat. Please contact the service desk on 84357 for a replacement. The display panel on the front of the microphone has an audio meter located along the left hand side. This bar fills up as you speak indicating that the microphone is receiving sound. If the word MUTE is displayed, the microphone mute switch has been engaged. Toggle the mute switch off using the slide switch located at the top of the transmitter pack. For best audio performance and reduce variations in audio recording volume levels, position the microphone in the centre of your body. This will minimise audio fade when your head is turned. Attach the microphone in such a way that you avoid cloth hitting the microphone. This will help eliminate friction noise on your recordings from material rubbing against the microphone. This microphone is rechargeable and a recharge station has been installed on the lectern. Please return the microphone to the recharger after use to ensure that the transmitter will be powered for subsequent users. Place the transmitter in the cradle making sure the recharge pins are correctly aligned. There are two recharge pins located on the right side and on located on the left side.