Using the Galaxy Audio ESM4 is easy. First, choose the cable that fits your wireless transmitter from the four detachable connector cables provided in your configuration. Then, put on the single - ear headset microphone and adjust the flexible boom to position the mic close to your mouth for the best sound. You can attach the windscreen to reduce background noise if needed. When using it, keep the operating voltage between 2.0 and 10 VDC. Avoid exposing the microphone to extreme temperatures or humidity. After use, put it back in the protective case to prevent damage. Clean the microphone gently with a soft cloth from time to time to keep it in good condition. And don't forget to refer to the manual for more detailed information.