The Shure PGX4 wireless diversity receiver operates on the H6 band, with a frequency range of 524 - 542 MHz. Before you buy, make sure to check your country's wireless frequency regulations as some frequency ranges may be illegal in certain countries. This unit has only undergone power - testing. It comes with the correct power supply, ensuring a hassle - free setup for your audio needs.

Using the Shure PGX4 wireless diversity receiver is quite straightforward. First, connect it to the correct power supply that comes with it. After powering it on, you can start pairing it with your compatible wireless transmitters. When using, always keep in mind the frequency regulations of your country to avoid any legal issues. As for maintenance, keep the receiver in a clean and dry place. Regularly check the power supply cable for any signs of wear and tear. If you notice any problems, it's best to contact Shure's customer service for assistance.