This Sennheiser ew 300 IEM G3 wireless system is a great choice for audio needs. It comes with an SR 300 IEM G3 wireless stereo transmitter and an EK 300 IEM G3 wireless bodypack receiver. Note that it doesn't include a power supply or batteries. The frequency range is 516 - 558 MHz. Before buying, make sure to check your country's wireless frequency regulations as some ranges may be illegal. Also, the transmitter's antenna is not included.

Using this Sennheiser wireless IEM system is easy. First, you'll need to get your own power supply and batteries as they're not included. Connect the SR 300 IEM G3 transmitter to your audio source. Then, turn on the EK 300 IEM G3 bodypack receiver and pair it with the transmitter. You're ready to enjoy high - quality audio. Remember to check your country's wireless frequency laws before using it. When it comes to maintenance, keep the system clean and dry. Avoid exposing it to extreme temperatures. If you're not using it for a long time, store the system in a cool and dry place.