Using the Countryman E6 All - Directional Microphone Protective Cap is easy. Just place it on your microphone. For most general use, you can stick with the pre - installed +4dB cap. But if you notice excessive high - frequency feedback, swap it out for the +0dB cap.
When it comes to maintenance, gently clean the caps with a soft, dry cloth regularly. Avoid using harsh chemicals as they might damage the cap. Also, keep the caps in a dry place when not in use to prevent any moisture - related issues. And always handle the caps with care to avoid any physical damage.