The Sennheiser SK 300 G4 Wireless Bodypack Transmitter operates in the 558 - 608 MHz frequency range. Before buying, make sure to check your country's wireless frequency regulations as some ranges may be illegal. Batteries aren't included. It has a software revision of 1.2.0 and has only undergone power - testing.

Using this Sennheiser SK 300 G4 Wireless Bodypack Transmitter is easy. First, connect it to your audio source. Then, set it to the right frequency in the 558 - 608 MHz range. Remember, check your country's wireless frequency laws before using it. When it comes to power, you'll need to provide your own batteries as they aren't included. For maintenance, keep it in a dry and clean place. If you have any problems, it's best to consult a professional. Also, note that this unit has only been power - tested, so use it with that in mind.