The Sennheiser EM 100 G1 wireless receiver operates in the 630 - 662 MHz frequency range. Please note it's not for use in the U.S. Before buying, check your country's wireless frequency regulations as some frequency ranges may be illegal in certain countries. This product does not come with a power supply or antennas. It has only been power - tested.

How to use: Since this Sennheiser EM 100 wireless receiver doesn't come with a power supply or antennas, you'll need to get them separately. Connect the power supply first and then attach the antennas properly to start using it. Note: This receiver can't be used in the U.S. Always check your local wireless frequency laws before using it to avoid any legal issues. Maintenance: Keep the receiver in a dry and clean place. When not in use, disconnect the power supply to extend its lifespan.