The SK 100 G3 is a bodypack transmitter for the 100 G3 series by Sennheiser. E frequency (823 to 865 MHz)
Professionals have known for years that reducing the RF output power of a transmitter is very helpful when you are working with a great number of wireless systems simultaneously. This SK 500 G3 transmitter has that particular option.
Your receiver is no good without a good transmitter. The SK 100 G3-1G8 transmitter by Sennheiser is full of the latest technology.