This Sennheiser EM 100 G2 wireless receiver operates in the 626 - 662 MHz range. 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. Also, this unit doesn't come with a power supply and has only been power - tested, with no antennas included.

How to use: First, make sure you have a suitable power supply as this receiver doesn't come with one. Connect it to your audio system and set the frequency within the 626 - 662 MHz range according to your needs. Remember, check your country's laws about using this frequency range. Precautions: Don't use it if it's illegal in your country. Avoid exposing it to extreme temperatures or moisture. Maintenance advice: Keep it clean with a dry cloth. Store it in a cool, dry place when not in use.