The ABT-M01 microphone is a fully analog device. It is equipped with a built in gong generated on-board the device, accessible through the switch on the back panel. The gong and the microphone itself has an individual volume control placed on the back panel of the device.
To operate the device press the MIC ON button, the status LED will switch to steady green light. In the event of an active built in gong, the status LED will turn green once the gong has ended. When finished transmitting the message release the MIC ON button to deactivate
the goose-neck mic.