DeoxIt Mini Spray
Convenient Mini Size Deox-it Connector Cleaner is a fast-acting deoxidizing solution that cleans, protects, lubricates and improves conductivity on all metal connectors and contacts. Use as a general treatment for connectors, contacts and other metal surfaces, and on metal surfaces with severe oxidation and corrosion. If the metal surface is discolored, it is severe. DeoxIT® dissolves the contamination and protects the surface.
Deox-it Connector Cleaner is the answer when your mic gets the crackles caused by dirty or corroded connectors. Just spray some on and wipe it clean or let air-dry. When regularly used, will prolong the life of your headset and transmitter connector. Also, see EGloop for extra protection.