This Sennheiser ew 500-945 G3 handheld mic system operates in the 470 - 516 MHz range. Note that it doesn't come with a power supply. The G range is 566 - 608 MHz. Before buying, check your country's wireless frequency regulations as some frequency ranges may be illegal in certain countries. It's equipped with an e945 capsule, but antennas are not included. One known issue is that a screw for mounting the rack ear on the receiver side is missing.

To use this Sennheiser ew 500-945 G3 handheld mic system, first, make sure to use your own power supply as it's not included. Check your local wireless frequency laws to ensure you're using a legal frequency range. When setting up, be aware that there's no antenna provided, so you'll need to get one separately. Also, since one of the screws for mounting the rack ear on the receiver side is missing, you might want to find a replacement. For maintenance, keep the mic clean and dry. Avoid exposing it to extreme temperatures or moisture. If you have any issues, check the connections and the battery if you're using one.