The Shure PG88 dual-channel wireless receiver operates on the H7 band from 536 to 548 MHz. Before buying, make sure to check your country's wireless frequency regulations as some frequencies may be illegal in certain countries. It comes with the correct power supply.

Using the Shure PG88 dual-channel wireless receiver is easy. First, make sure you've got the correct power supply connected. Turn on the receiver and tune it to the frequency you need within the 536 - 548 MHz H7 band. But remember, always check your country's laws about wireless frequencies before using it. As for maintenance, keep it in a dry and clean place. Avoid exposing it to extreme temperatures. If there's dust, use a soft, dry cloth to gently wipe it down. That way, your receiver will keep working well for a long time.