The Sennheiser EM 100 G1 wireless receiver operates in the 630 - 662 MHz range. Before buying, make sure to check your country's wireless frequency regulations as some frequencies might be illegal in certain countries. This receiver comes without a power supply and antennas.

Using the Sennheiser EM 100 wireless receiver is simple. First, you'll need to connect it to a proper power supply (not included) and antennas (also not included). Make sure to place it in a location with good signal reception. Before using, double - check your country's wireless frequency laws to avoid any legal issues. When it comes to maintenance, keep it clean and dry. Avoid exposing it to extreme temperatures or humidity. If you notice any problems, consult the Sennheiser customer service.