Using this Shure ULXS14 wireless belt pack system is quite straightforward. First, connect the antenna to the bodypack properly. Then, pair it with your compatible device according to the device's pairing instructions. Remember, this system doesn't come with a power supply, so you'll need to get one that suits it. When it comes to usage, always check your country's wireless frequency laws. Make sure the frequency range of 662 - 698 MHz is legal to use where you are. For maintenance, keep the bodypack and antenna 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 cool place.