What is the BEST Cordless Mic to use for Announcing at the Drag Races for an Announcer. He is just 14 and is looking for a Cordless Mic to use at the races. He does announcing in an open area in race control rooms, as well as going onto the grounds asking racers questions and announcing awards. Drag Racing gets very loud with the cars running and your trying to announce. If someone has a Suggestion on a good brand for a cordless mic, I would appreciate the suggestions.