To use this Shure ULXS4 G3 wireless receiver, first, you'll need to get a compatible power supply and antennas separately. Connect the power supply to the receiver and then attach the antennas. Place the receiver in a stable location away from sources of interference. When using it, always keep in mind your country's wireless frequency regulations. To maintain the receiver, keep it clean by using a soft, dry cloth to wipe it. Avoid exposing it to extreme temperatures and humidity. If you notice any issues, refer to the user manual or contact Shure's customer support.