This Sennheiser EM 300 G2 wireless receiver operates in the 518 - 554 MHz A2 band. It's important to note that this unit doesn't come with a power supply or antennas. Before you buy, make sure to check your country's wireless frequency regulations as some frequency ranges may be illegal in certain areas. Enjoy high - quality wireless audio with this reliable receiver, just remember to get the necessary accessories.

Using this Sennheiser EM 300 G2 wireless receiver is simple. First, you'll need to get a compatible power supply and antennas as they're not included. Connect the power supply to the unit and attach the antennas. Make sure the frequency is set within the 518 - 554 MHz range, and always double - check your local laws regarding wireless frequencies. When it comes to maintenance, keep the unit clean and dry. Avoid exposing it to extreme temperatures or humidity. If you're not using it for a long time, store it in a safe place. Also, don't forget to regularly check the connections to ensure stable performance.