This Sennheiser EM 300 G2 wireless receiver operates in the A2 band with a frequency range of 518 - 554 MHz. It's crucial to check your country's wireless frequency regulations before buying, as some frequency ranges may be illegal in certain countries. Note that this unit doesn't come with a power supply or antennas.

To use this Sennheiser EM 300 G2 wireless receiver, first make sure you have a compatible power supply and antennas as they are not included. Connect the power supply and antennas properly. Before using, check your country's wireless frequency laws to avoid any legal issues. When not in use, keep it in a dry and cool place. Clean it gently with a soft cloth regularly to maintain its performance. If you encounter any problems, refer to the Sennheiser official website or contact their customer service.