This Sennheiser EM 100 G2 wireless receiver operates within the 626 - 662 MHz frequency range. Note that due to this specific frequency range, it's not suitable for use in the U.S. Before buying, make sure to check your country's wireless frequency laws as some frequency ranges may be illegal in certain countries. This unit comes without a power supply and has only been power - tested. It includes antennas but no power supply.

Using this Sennheiser EM 100 G2 wireless receiver is straightforward. First, you'll need to provide your own power supply as it's not included. Connect the antennas to the unit to ensure a good signal. Before using, double - check that the frequency range of 626 - 662 MHz is legal in your country. When not in use, store it in a dry and cool place to avoid damage. Regularly check the antennas for any signs of wear or damage. If you notice any issues with the signal or performance, it might be time to replace the antennas. Keep the unit clean by using a soft, dry cloth to wipe it down. And always remember to turn off the power when you're done using it to save energy and extend the unit's lifespan.