Using this Shure ULXP14 belt - pack wireless system is easy. First, connect the lavalier microphone to the ULX1 belt - pack transmitter. Then pair the transmitter with the ULXP4 wireless receiver. Remember, since it doesn't come with a power supply, you'll need to use your own compatible power source to get it up and running. Before you start using it, check your country's wireless frequency laws. Some frequencies in this M1 band may be illegal in your area. When it comes to maintenance, keep the system clean and dry. Avoid exposing it to extreme temperatures or moisture. After each use, store it in a safe place. If you're traveling, make sure to pack it carefully to prevent any damage.