This Sennheiser ew 500-945 G3 handheld wireless system operates in the B frequency range of 626 - 668 MHz. Note that due to the frequency range, it's not legal for use in the U.S. Always check your country's wireless frequency regulations before buying, as some frequency ranges are illegal depending on the country. It comes with an e945 capsule for great sound quality but does not include receiver antennas. The package includes the correct power supply.

Using this Sennheiser wireless system is easy. First, connect the power supply to the receiver. But remember, before you start using it, check your country's laws about the 626 - 668 MHz frequency range. You'll need to provide your own antennas for the receiver. When it comes to maintenance, keep the system in a dry and clean place. Avoid exposing it to extreme temperatures. Also, make sure to turn it off when not in use to save power and extend its lifespan.