This Shure UC4-UB wireless receiver operates in the UB range of 692 - 716 MHz. It doesn't come with a power supply or antennas. Note that due to the frequency range, it's not legal for use in the U.S. Always check your country's wireless frequency regulations before buying, as some frequency uses may be illegal depending on the country. This unit has only undergone power testing.

Using this Shure UC4 - UB wireless receiver is straightforward. First, make sure you have a suitable power supply as it's not included. Then, connect the necessary antennas (which are also not included). Before using it, double - check your country's wireless frequency laws to ensure it's legal. When it comes to maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures. If you notice any issues during power testing, don't use it and contact customer service.