Using this Shure wireless handheld microphone system is easy. First, make sure you have a suitable power supply as it's not included in the package. Connect the receiver to your audio device. Then, turn on the handheld mic and the receiver. You're all set to start using it. Remember to check your country's wireless frequency laws before using it. As for maintenance, keep the microphone and receiver clean. Avoid exposing them to extreme temperatures or moisture. If you're not using the system for a long time, store it in a dry and safe place.