Contributing Editor Hal Robertson has used wireless microphones for over 20 years. And yes, he's accidentally captured talent using the restroom.

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Test Drive
Choosing a wireless microphone is a lot like finding a new car - no two are alike. The mic everyone's raving about may not suit you or your production style. You may not even like the sound quality. The microphone element included in your new wireless rig is critical, and most manufacturers have more than one model. If at all possible, borrow or rent a system before the purchase. Use it on a real shoot and scrutinize every aspect of operation and sound before laying down your hard-earned cash. Regardless of the spec sheet or reviews, it's best to try before you buy.