This Shure SLX4 wireless receiver operates on the J3 band (572 - 596 MHz). Note that it doesn't come with a power supply or antennas. Before buying, check your country's wireless frequency regulations as some frequency ranges may be illegal to use.

To use this Shure SLX4 wireless receiver, first, make sure you have a suitable power supply as it's not included. Connect your audio device to the receiver. Remember to check your country's wireless frequency laws before using it, as some frequencies might be illegal. For maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures or moisture. If you need to transport it, use a proper protective case to prevent any damage. And always ensure the antennas are properly connected for the best signal quality, though the antennas are not part of the package.