Using the Shure AXT100 bodypack transmitter is easy. First, attach the included Shure WL185 lavalier microphone to the unit. You'll need to provide your own battery as it's not included. Before turning it on, make sure to check your country's wireless frequency laws, especially since frequencies above 608 MHz are illegal in the U.S. When you're ready, power it on and you're set to transmit audio. For maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or moisture. If you're not using it for a long time, remove the battery to prevent damage. And always check the connections to ensure a stable audio signal.